Solve the problem.Let f(x) compute the cost of a rental car after x days of use at $48 per day. What is the interpretation of the solution of 
A. The number of days rented for $141
B. The cost of rental for 48 days
C. The number of days rented for $48
D. The cost of rental for 141 days
Answer: D
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Construct a truth table for the statement.q ? ~p
A. 
| T | T | F |
F T T
F F T
B.
| T | T | T |
F T F
F F F
C.
| T | T | F |
F T T
F F T
D.
| T | T | T |
F T T
F F T
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. 7.4 B. 7.8 C. 8.0 D. 8.2
Factor the expression completely.r2n - s2n
A. (rn - sn)(rn - sn) B. (rn - sn)(rn + sn) C. n(r - s)(r + s) D. (r2 - s2)(rn + sn)
Solve the problem.If two cards are drawn without replacement from an ordinary deck, find the probability that the second card is a spade, given that the first card was a spade.
A. 
B. 
C. 
D. 