Solve the problem.Bill kept track of the number of hours he spent exercising each week. The results for four months are shown below. Find the mean number of hours Bill spent exercising per week. Round your answer to the nearest tenth of an hour.
A. 7.6 hours
B. 8.3 hours
C. 8.5 hours
D. 8.0 hours
Answer: D
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Find the horizontal asymptote(s), if any, of the graph of the rational function.g(x) = 
A. y = 0
B. y = 3
C. y = 
D. no horizontal asymptote
Solve the problem.The following data represents the average monthly minimum temperature for a certain city in California. 
Draw a scatter diagram of the data for one period. Find a sinusoidal function of the form 
that fits the data. Draw the sinusoidal function on the scatter diagram. Use a graphing utility to find the sinusoidal function of best fit. Draw the sinusoidal function of best fit on the scatter diagram.
What will be an ideal response?
Find the products AB and BA to determine whether B is the multiplicative inverse of A.A = 
,B = 
A. B = A-1 B. B ? A-1
Solve the inequality. Graph your solution on a number line, and write your solution in interval notation.-7x + 1 ? 15 or 5x + 3 ? -17
A. [-4, ?)
B. [-2, ?)
C. [-4, -2]
D. (-?,?)