Simplify the exponential expression.
3
A. 
B. 
C. 
D. 
Answer: C
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Solve the problem. Round amounts to the nearest cent and percents to the nearest tenth of a percent.Selling price = $70.24; Rate or markup based on cost = 94%. Find the cost and markup.
A. Cost: $4.21 Markup: $66.03 B. Cost: $66.03 Markup: $4.21 C. Cost: $34.03 Markup: $36.21 D. Cost: $36.21 Markup: $34.03
Solve the rational inequality. Write the solution set using interval notation; then graph the solution set on a number line.
> x
A. (0, 3) ? (5, ?)
B. (-?, 0) ? (3, 5)
C. (5, ?)
D. (-?, 3) ? (5, ?)
Scores on an aptitude test form a normal distribution with a mean of 140 and a standard deviation of 12. Find the per cent that score between 152 and 161.
A. 4.01% B. 11.86% C. 15.87% D. 80.12%
Find the exact acute angle ? for the given function value.cot ? = 
A. 45° B. 60° C. 30°