Use the rules for exponents to rewrite the expression and then evaluate the new expression. 
A. -14
B. -5
C. 0
D. 1
Answer: D
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Use the graph to answer the question.
Mike decides to buy shares of companies X and Y, which were initially selling for the same price. The changes in each stock's value over 90 days are shown in the graph above. At day 90, Mike decides to buy more of one of the stocks. Which stock should he choose?
A. X B. Y
Factor completely.x2 + 50x + 625
A. (x - 25)2 B. (x + 25)(x - 25) C. (x + 25)2 D. Prime
Solve the problem.Write 48 out of 50 computer chips as a reduced fraction and as a percent.
A. 
, 960%
B. 
, 96%
C. 
, 960%
D. 
, 9.6%
In a right triangle, find the length of the side not given. Let c represent the length of the hypotenuse. Give an answer to the nearest tenth if necessary.a = 8 in., c = 17 in.
A. b = 15 in. B. b = 9 in. C. b = 225 in. D. b = 25 in.