Solve the problem.Last year, Maria earned $336 per week. This year, her salary increased to 
per week. What is the percent of increase?
A.
| 92.8% |
B.
| 7.2% |
C. 7.7%
D.
| 92.3% |
Answer: C
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Express in simplified form. Assume that all variables represent positive real numbers.
A. 4
B. 256a
C. 4a2
D. 4a
Solve the problem.The graphs below show the first and second derivatives of a function 
. Select a possible graph of f that passes through point P.f'?f"
?
A. 
B. 
C. 
D. 
Solve the problem.Fred Smith bought 125 shares of Acme Steel at $38.25 per share and 435 shares of Kafka Enterprises at $74 per share. Find the total amount that he paid, assuming he was charged a commission of 0.75%.
A. $36,833.11 B. $37,094.11 C. $36,746.11 D. $37,248.54
Solve the problem.The total price (including sales tax) of a VCR is $291.05. The sales tax rate is 5%. What is the purchase price of the VCR (the price before taxes are added)? Round your answer to the nearest cent.
A. $274.58 B. $194.03 C. $279.86 D. $277.19