Simplify the expression. Write the result using positive exponents only.(
)-4
A. 
B. -81
C. 81
D. 
Answer: C
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Write the decimal as a fraction or mixed number in lowest terms.35.52
A. 355
B. 3552
C. 3
D. 35
Express the given logarithm as a sum and/or difference of logarithms. Simplify, if possible. Assume that all variables represent positive real numbers.log4
A. 
log4p + 
log4q - 
log4t
B. 
log4p + 
log4q - 2 log4t
C. 
log4p ? 
log4q ÷ 2 log4t
D. 3 log4p + 5 log4q - 2 log4t
Solve the problem.Let f(x) = x-1.24 - x2.3. Approximate f(2.21) to the nearest hundredth.
A. x ? 1.45 B. x ? 2.51 C. x ? -5.68 D. x ? -5.82
Solve the problem.Zach is planning to invest up to $45,000 in corporate and municipal bonds. The least he will invest in corporate bonds is $8000 and he does not want to invest more than $25,000 in corporate bonds. He also does not want to invest more than $34,601 in municipal bonds. The interest is 7.9% on corporate bonds and 6.8% on municipal bonds. This is simple interest for one year. What is the maximum income?
A. $23,335 B. $3335 C. $28,335 D. $5615