Simplify the expression.
A. -2
B. 2
C. 4
D. not a real number
Answer: D
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Solve the formula for the specified variable.I = 
for n
A. n = 
B. n = 
C. n = 
D. n = IR(Ir - E)
Use the compound interest formulas A = P
nt and A = Pert to solve.Find the accumulated value of an investment of $12,000 at 8% compounded semiannually for 11 years.
A. $22,560.00 B. $27,979.67 C. $18,473.45 D. $28,439.03
Find the product.
A. 
B. 
C. 
D. 
The graph of a function f is given. Use the graph to answer the question.Find the numbers, if any, at which f has a local maximum. What are the local maxima?
A. f has a local maximum at x = -2 and 2; the local maximum is 0 B. f has a local maximum at x = 2; the local maximum is 1 C. f has a local maximum at x = 0; the local maximum is 1 D. f has no local maximum