Simplify the expression.-
A. 8
B. Not a real number
C. -8
D. -64
Answer: C
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Solve the problem.A borrower uses an income tax refund to pay off the balance on a fixed installment loan. Which rules or methods can be used to compute the amount of interest he will save?
What will be an ideal response?
Solve the inequality. Express your answer using interval notation. Graph the solution set.- 
? 
< 
A. 
B. 
C. 
D. 
Estimate the probability of an event (empirical probability). A new drug is being tested that is supposed to lower cholesterol. This drug was given to 200 people. After the test period ended, 112 people had lower cholesterol, 6 people had higher cholesterol, and 82 people had no change in their cholesterol. Estimate the probability that after testing this drug a person's cholesterol will be higher.
A. 
B. 
C. 
D. 
Which function does the graph represent?
A. ?g(x) = [[3x]] B. ?g(x) = [[x+3]] C. ?g(x) = 3[[x]] D. ?g(x) = [[-4x]] E. ?g(x) = [[x-3]]