Solve the problem.At $14 per ticket, the Casper Coyotes will fill all 8000 seats in the assembly hall. The manager knows that for every $1 increase in the price, 100 tickets will go unsold. Write the number of tickets sold, n, as a function of the ticket price, p. How much money will be taken in if the tickets are $19 each? Hint: Find the equation of the line through (14, 8000), (15, 7900), 
etc.
A. n = -200p - 17,400; -$21,200
B. n = 200p + 2200; $6000
C. n = -100p - 8140, -$10,040
D. n = -100p + 9400; 7500
Answer: D
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Solve the problem.An experiment is done to compare the average fuel economy of two models of cars. Several cars of each model were tested under similar conditions. The results are in the two tables below. Which car model is better?Car XCar YFuel Economy, in mpgFuel Economy, in mpg22 21 27 24 22 18 21 2221?21?27?27?27?24?21?2422?24?18?22?21?18?21?24
A. Car X B. Car Y
Set up the percent proportion, and write "unknown" for the value that is not given. Recall that the percent proportion is 
= 
. Do not try to solve for any unknowns.23.3% of 87 is what?
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Factor.42x2y + 72x3 + 6xy2
A. (18x + 6y)(4x + y) B. 6(3 + xy)(4 + xy) C. 6x(3x - y)(4x - y) D. 6x(3x + y)(4x + y)
Solve the problem.A rectangular parking lot has a length that is 3 yards greater than the width. The area of the parking lot is 180 square yards. Find the length and the width.
A. Width: 9 yd; length: 12 yd B. Width: 18 yd; length: 21 yd C. Width: 12 yd; length: 15 yd D. Width: 15 yd; length: 18 yd