Solve the problem.Mary and her brother John collect foreign coins. Mary has four times the number of coins that John has. Together they have 150 foreign coins. Find how many coins Mary has.
A. 114 coins
B. 24 coins
C. 30 coins
D. 120 coins
Answer: D
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Write the decimal using the indicated form.6.000634; expanded exponential form
A. 6 ? 101 + 6 ? 10-1 + 3 ? 10-2 + 4 ? 10-3 B. 6 ? 100 + 0 ? 10-1 + 0 ? 10-2 + 0 ? 10-3 + 6 ? 10-4 + 3 ? 10-5 + 4 ? 10-6 C. 6 ? 100 + 6 ? 10-1 + 3 ? 10-2 + 4 ? 10-3 D. 6 ? 10-1 + 0 ? 101 + 0 ? 102 + 0 ? 103 + 6 ? 104 + 3 ? 105 + 4 ? 106
Find the product and write the answer in simplest form. Assume variables represent nonnegative values.
? 
A. 
B. 5xy
C. 
D. 6xy
Form an equivalent expression by rationalizing the denominator.
A. 13
B. 13
C. 1
D. 
Solve the problem.The sum of two numbers is 52. Express the product of the numbers, P, as a function of one of the numbers, x.
A. P(x) = (52 - x)2 B. P(x) = 2(52 - x) C. P(x) = (26 - x)2 D. P(x) = x(52 - x)