Find the mean.Jill kept track of the number of hours she spent exercising each week. The results for four months are listed below. Find the mean number of hours Jill spent exercising per week. Round your answer to one decimal place if necessary. 6.7 7.4 7.5 8.6 7.3 6.7 8.7 7.5 8.2 6.7 8.6 8.3 8.8 7.4 7.4 8.2 7.3 8.7
A. 8.2
B. 7.8
C. 7.4
D. 8.0
Answer: B
Mathematics
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Solve the problem.Find the amount of money in an account after 9 years if $2800 is deposited at 8% annual interest compounded semiannually.
A. $5672.29 B. $5711.68 C. $5597.21 D. $5738.68
Mathematics
Divide and express the result in standard form.
A. 
- 
i
B. - 
+ 
i
C. - 
+ 
i
D. 
+ 
i
Mathematics
Evaluate. Round dollar amounts to the nearest cent and other answers to the nearest thousandth when necessary.130ert for t = 6 and r = 2%
A. $181.43 B. $146.57 C. $2611.12 D. $353.38
Mathematics
Use a formula from the list provided to find the area of the figure. 
A. 7.9 square yards B. 30.36 square yards C. 15.8 square yards D. 15.18 square yards
Mathematics