Solve for x and y.


Mathematics

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Provide an appropriate response.If 80 is increased by 25%, what is the new amount?

A. 105 B. 100 C. 20 D. 60

Mathematics

Use the laws of exponents to simplify. Do not use negative exponents in your answer.22 ? 24

A. 48 B. 46 C. 26 D. 28

Mathematics

Solve the problem.Suppose that the radius r and volume V = ?r3 of a sphere are differentiable functions of t. Write an equation that relates dV/dt to dr/dt.

A.  = 4?r2
B.  = 4?
C.  = ?r2
D.  = 3r2

Mathematics

Subtract. Write the answer in lowest terms as a mixed number.

A. 11
B. 12
C. 13
D. 12

Mathematics