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PREP07 Test 1	A certain company has 18 equally qualified applicants for 4 open positions. How many different groups of 4 applicants can be chosen by the company to fill the positions if the order of selection does not matter?
Ready4	Which of the following equations describes a line parallel to the line below? $x+2y=<font color='#FE8080'>4</font>$
OG19-数学分册	If $$\frac{3}{10^{4}} = x$$%, then x =
PREP07 Test 2	What is the greatest prime factor of $${4}^{17} - {2}^{28}$$ ?
Magoosh	If$$ \frac{w}{x} = \frac{2}{3} and\frac{ w}{y} = \frac{8}{15}$$, then $$({x + y})\over{y} $$=
Magoosh	If $$xy \neq 0$$ and 2x + 3y is equal to 175 percent of 8x, then x/y =
Magoosh	If x = $$\frac{7}{9} - \frac{15}{18} + \frac{10}{12} then{ (1-x)}^2 =$$
Magoosh	$$\frac{228}{494}$$=
Magoosh	O is the center of the semicircle. If ∠BCO=30°and BC =$$6\sqrt{3}$$ , what is the area of triangle ABO?
Magoosh	If 24 kilograms of flour are required to make 300 tarts, how many kilograms of flour are required to make 45 tarts?
Magoosh	If$$ 8^{n+1} + 8^{n} = 36$$, then n =
Magoosh	When a certain coin is flipped, the probability of heads is 0.5. If the coin is flipped 6 times, what is the probability that there are exactly 3 heads?
OG18-数学分册	The price of a certain stock increased by 0.25 of 1 percent on a certain day. By what fraction did the price of the stock increase that day?
OG19 OG20 OG2022	The table shows partial results of a survey in which consumers were asked to indicate which one of six promotional techniques most influenced their decision to buy a new food product .Of those consumers who indicated one of the four techniques listed ,what fraction indicated either coupons or store displays ?
Ready4	If $\frac{27}{0.5 + y} = 6$ , then $y =$
Ready4	If $2^n$ is a divisor of $1{,}680$ and $2^m$ is not a divisor of $1{,}680$ , where $m=n+1$ , what is the value of $n$ ?
	A circular mat with diameter 20 inches is placed on a square tabletop, each of whose sides is 24 inches long. Which of the following is closest to the fraction of the tabletop covered by the mat?
	A box contains exactly 24 balls, of which 12 are red and 12 are blue. If two balls are to be picked from this box at random and without replacement, what is the probability that both balls will be red?
	If a company allocates 15 percent of its budget to advertising, 10 percent to capital improvements, and 55 percent to salaries, what fraction of its budget remains for other allocations?
	A certain club has 20 members. What is the ratio of the number of 5-member committees that can be formed from the members of the club to the number of 4-member committees that can be formed from the members of the club?