Express as a difference of logarithms.log4 
A. log4 5 - log4 4
B. log4 4 + log4 5
C. log4 4 - log4 5
D. log2 4 - log2 5
Answer: C
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Write the expression as one logarithm.logb x + logb y
A. logb xy B. log2b xy C. log2b(x + y) D. logb(x + y)
Subtract.- 
A. 3.21 B. 3.2082 C. 3.2092 D. 3.2091
Solve the problem.In 1990, a company's profit was 44.6 million dollars. In 2000, the company's profit was 121.2 million dollars. Assume that the growth of the company's profit follows the exponential model and use 1990 as the base 
Estimate what the company's profit will be in 2010.
A. $247.2 million B. $659.1 million C. $593.2 million D. $329.6 million
For the given functions, find the requested function or functional value.For f(x) = 5x + 7 and g(x) = 9x2 - 3x + 6, find (g ? f)(2).
A. 97 B. 108 C. 187 D. 2556