Find the least common denominator for the expression.
+ 
A. 5(x - 4)2(x + 4)
B. 75(x - 4)2(x + 4)
C. 15(x - 4)(x + 4)
D. 15(x - 4)2(x + 4)
Answer: D
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Solve for x.
= 
A. 2 B. 5 C. 3 D. 4
Solve the equation.pm + 5 = 2m - 6n for m
A. m = 
, or m = 
B. m = 
, or m = 
C. m = 
, or m = 
D. m = 
, or m = 
Describe the transformations required to obtain the graph of the function f(x) from the graph of the function g(x).f(x) = -2 cos 
; g(x) = cos x
A. Horizontal shrink by a factor 
vertical shrink by a factor of 
, reflection across y-axis
B. Horizontal stretch by a factor 
, vertical stretch by a factor of 2, reflection across x-axis
C. Horizontal shrink by a factor 
, vertical stretch by a factor of 2, reflection across x-axis
D. Horizontal stretch by a factor 
, vertical stretch by a factor of 2, reflection across y-axis
Solve the problem.Use a graphing calculator to predict what income the company should expect in its seventh year of operation. 
A. 30-40 million B. 5-7 million C. 2-3 million D. 10-20 million