Solve the problem.
-55
A. A(x) = 2x(5 - x)
B. A(x) = 2x(x - 5)
C. A(x) = 2x2
D. A(x) = x(5 - x)
Answer: A
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Solve the problems.Mary and her brother John collect foreign coins. Mary has twice the number of coins that John has. Together they have 90 foreign coins. Find how many coins Mary has.
A. 12 coins B. 60 coins C. 30 coins D. 54 coins
Estimate the sum or difference by first rounding each value to the indicated place value. Then find the actual sum or difference.6.193 + (-3.003)
round each to the nearest one
A. Estimate: 4; Actual: 3.19 B. Estimate: 3; Actual: 3.19 C. Estimate: 4; Actual: 3.2 D. Estimate: 3; Actual: 3.29
Provide an appropriate response.Write the quotient, using positive exponents: 
A. 1
B. a
C. a12
D. 
Multiply. Simplify and leave the numerator and denominator in your answer in factored form.
? 
A. 
B. 
C. 
D. 