Solve the problem.An organization determines that the cost per person of chartering a bus is given by the formula 
where x is the number of people in the group and C(x) is in dollars. Find the inverse function.
A. C-1(x) = 
B. C-1(x) = 
C. C-1(x) = 
D. C-1(x) = 
Answer: A
Mathematics
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Solve.A rectangular board is 14 ft by 18 ft. How far from the center of the board should the foci be located in order to cut the largest elliptical tabletop from the board? Round to one decimal place if necessary.
A. 7.0 ft B. 3.3 ft C. 5.7 ft D. 2.0 ft
Mathematics
Graph the linear inequality in two variables.x + y < -5
A. 
B. 
C. 
D. 
Mathematics
Determine which purchase has the lower unit price.Brand A: 31 oz for $10.23Brand B: 4 lb, 2 oz for $19.14
A.
| Brand B |
B. Not enough information
C. Equal value
D. Brand A
Mathematics
Solve.The figure shows the graphs of the cost and revenue functions for a company that manufactures and sells binoculars. 
At the break-even point both cost and revenue are what?
A. $1500 B. $750 C. $2250 D. $2700
Mathematics