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OG12 OG15 OG16 OG17 OG18 OG19 OG20
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 In the figure, points A, B, C, D, and E lie on a line. A is on both circles, B is the center of the smaller circle, C is the center of the larger circle, D is on the smaller circle, and E is on the larger circle. What is the area of the region inside the larger circle and outside the smaller circle?(1)AB = 3 and BC =2(2)CD =1 and DE = 4
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PREP07 Test 2
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If x and z are integers, is at least one of them even?(1)x + z is odd.(2)x - z is odd.
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 Lines m and n intersect, as shown in the figure above. What is the value of u - w?(1)u = 90(2)Lines m and n are perpendicular.
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What is the value of the sum of a list of n odd integers?(1)n = 8(2)The square of the number of integers on the list is 64.
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If r and s are positive integers, r is what percent Of s(1)r=$$\frac3 4s$$(2)r+s=$$\frac{75} {100}$$
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OG12 OG15
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A certain expressway has Exits J, K, L, and M, in that order. What is the road distance from Exit K to Exit L ?(1)The road distance from Exit J to Exit L is 21 kilometers.(2)The road distance from Exit K to Exit M is 26 kilometers.
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OG12 OG15 OG16 OG17 OG18
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Water is pumped into a partially filled tank at a constant rate through an inlet pipe. At the same time, water is pumped out of the tank at a constant rate through an outlet pipe. At what rate, in gallons per minute, is the amount of water in the tank increasing?(1)The amount of water initially in the tank is 200 gallons.(2)Water is pumped into the tank at a rate of 10 gallons per minute and out of the tank at a rate of 10 gallons every $${2}\frac1 2$$ minutes.
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Does 2m-3n = 0?(1)$${m}!={0}$$(2)6m = 9n
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What is the value of the integer x?(1)x is a prime number.(2)31 ≤ x ≤ 37
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If P, Q, and R are three distinct points, do line segments PQ and PR have the same length?(1)P is the midpoint of line segment QR.(2)Q and R lie on the same circle with center P.
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If $$xyz > 0$$, is $${x}{y}^{2}{z}^{3} < 0$$ ?(1)$$y < 0$$(2)$$x > 0$$
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What was the percent increase in the average (arithmetic mean) contribution per member of a certain public radio station from 1985 to 1995 ?(1)Total contributions by members increased from $505,210 in 1985 to $1,225,890 in 1995.(2)The number of members exactly doubled from 1985 to 1995.
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 In the figure shown, triangle ABC is inscribed in the circle. What is the circumference of the circle?(1)AB is a diameter of the circle.(2)The ratio of the lengths of BC, AC, and AB, respectively, is 3 : 4 : 5.
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What is the value of $${x}^{2}$$ ?(1)$${5}<{x}^{2}<{10}$$(2)x is an integer.
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If x and y are positive, is $$x^{3}\gt{y}$$?
(1)$$\sqrt{x}\gt{y}$$(2)$$x\gt{y}$$
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If |n+5|= 5, what is the value of n?(1)n^2 is not equal to 0.(2)n^2 + 10n = 0
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PREP07 Test 1
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An integer greater than 1 that is not prime is called composite. If the two-digit integer n is greater than 20, is n composite?(1)The tens digit of n is a factor of the units digit of n.(2)The tens digit of n is 2.
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Is $$m\neqn$$?(1)m + n < o(2)mn < 0
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OG12 OG15
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 Quadrilateral RSTU shown above is a site plan for a parking lot in which side RU is parallel to side ST and RU is longer than ST. What is the area of the parking lot?(1)$$RU = 80$$ meters(2)$$TU = 20\sqrt{10}$$ meters
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OG12 OG15 OG16 OG17 OG18 OG19 OG20 OG2022
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If the average (arithmetic mean) of six numbers is 75, how many of the numbers are equal to 75 ?(1)None of the six numbers is less than 75.(2)None of the six numbers is greater than 75.
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