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which of the following CANNOT be a value of $$\frac{1}{x-1}$$
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OG12 OG15 OG16 OG17
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The ratio 2 to $$\frac{1}{3}$$ is equal to the ratio
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OG12 OG15
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Running at the same constant rate, 6 identical machines can produce a total of 270 bottles per minute. At this rate, how many bottles could 10 such machines produce In 4 minutes?
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OG12 OG15
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 In the figure above, the coordinates of point V are
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The Earth travels around the Sun at a speed of approximately 18.5 miles per second. This approximate speed is how many miles per hour?
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OG12 OG15
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If the quotient $$\frac{a}{b}$$ is positive,which of the following must be true?
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OG12 OG15 OG16
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How many minutes does it take John to type y words if he types at the rate of x words per minute?
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OG12 OG15
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What is the lowest positive integer that is divisible by each of the integers 1 through 7,inclusive
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If 3 and 8 are the lengths of two sides of a triangular region, which of the following can be the length of the third side?I 5II 8III 11
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A car dealer sold x used cars and y new cars during May. If the number of used cars sold was 10 greater than the number of new cars sold, which of the following expresses this relationship?
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OG12
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$$(\sqrt{7}+\sqrt{7})^{2}$$
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OG12
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In a certain population, there are 3 times as many people aged 21 or under as there are people over 21. The ratio of those 21 or under to the total population is
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OG12 OG15
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The average (arithmetic mean) of 10, 30, and 50 is 5 more than the average of 20, 40, and
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PREP07 Test 1
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For several years, per capita expenditure on prescription drugs in Voronia rose by fifteen percent or more annually. In order to curb these dramatic increases, the ministry of health prohibited drug manufacturers from raising any of their products' prices. Even though use of prescription drugs did not expand after this price freeze, per capita expenditure for prescription drugs continued to increase by a substantial percentage each year.Which of the following, if true, most helps to explain why the ministry's action did not achieve its goal?
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PREP07 Test 1
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When interest rates are high, insurance companies reduce the premiums they charge for many kinds of insurance policies. The reason is that insurance companies want to take in as much money as possible in premiums so that they can invest the money at high rates of interest. And premium reductions help achieve this objective, since __________.Which of the following most logically completes the argument below?
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PREP07 Test 1
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In the two years following the unification of Germany in 1989, the number of cars owned by residents of East Germany and the total distance traveled by cars in East Germany both increased by about 40 percent. In those two years, however, the number of East German residents killed each year as car occupants in traffic accidents increased by about 300 percent.Which of the following, if true, most helps to explain the disproportionate increase in traffic fatalities?
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GWD
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The primary purpose of the passage is to
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OG17
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On Saturday morning, Malachi will begin a camping vacation and he will return home at the end of the first day on which it rains. If on the first three days of the vacation the probability of rain on each day is 0.2, what is the probability that Malachi will return home at the end of the day on the following Monday?
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PREP07 Test 1
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A thin piece of wire 40 meters long is cut into two pieces. One piece is used to form a circle with radius r, and the other is used to form a square. No wire is left over. Which of the following represents the total area, in square meters, of the circular and the square regions in terms of r?
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If n and k are positive integers, is $$\frac{n}{k}$$ an even integer?(1) n is divisible by 8.(2) k is divisible by 4.
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