Evaluate the algebraic expression for the indicated variable.
for x = 5, y = 7
A. 42
B. 70
C. 12
D. 7
Answer: A
Mathematics
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Multiply and simplify. Assume all variables represent nonnegative real numbers. Write your answer in radical notation.
A. 
B. 
C. 2ab 
D. 
Mathematics
Write as a percent. 0.645
A. 645% B. 0.0645% C. 64.5% D. 0.645%
Mathematics
Rationalize the denominator.
A. -6
B. -42
C. -7
D. -7
Mathematics
Solve.In a game of cards, Lindsey won 2 chips, lost 8 chips, won 4 chips, and lost 13 chips. What was her final count of chips?
A. -15 chips B. 11 chips C. 27 chips D. -23 chips
Mathematics