Solve the problem.Peter must practice the piano 
per week. He has already practiced 
How many more hours does he need to practice?
A. 
hr
B. 2
hr
C. 3
hr
D. 
hr
Answer: B
Mathematics
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Use the standard normal curve table to find the closest z-score for the given condition.4% of the total area is to the left of z.
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Solve the problem by integration.Find the volume generated by revolving the area bounded by 
, 
and 
about the 
A. ?
2
B. 
C. ?
D. 2?
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Find the compound amount for the deposit. Round to the nearest cent.$140,000 at 1.47% compounded quarterly for 5 years.
A. $187,448.19 B. $150,657.30 C. $150,597.01 D. $142,591.48
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Solve by addition or substitution. 7x + 9y = 9 4x + 7y = 7
A. (0, 2) B. (0, 1) C. (-1, 2) D. ?
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