Solve the problem.At Allied Electronics, production has begun on the X-15 Computer Chip. The total revenue function is given by 
and the total cost function is given by 
, where x represents the number of boxes of computer chips produced. The total profit function, P(x), is such that 
. Find P(x).
A. P(x) = 0.3x2 + 42x - 20
B. P(x) = 0.3x2 + 34x - 30
C. P(x) = -0.3x2 + 34x + 10
D. P(x) = -0.3x2 + 42x - 10
Answer: D
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Solve.The bar graph shows the median annual income for residents of a selected region of the United States, by level of education. The given polynomial models describe the median annual income for men, M, and for women, W, who have completed x years of education.M = -23x3 + 1170x2 - 13,808x + 72,566W = 8x3 - 56x2 + 511x + 14,763Find a mathematical model for M - W and use it to calculate the difference in the median annual income between men and women with 14 years of education. Does the model underestimate or overestimate the actual difference?
A. $12,569; overestimates B. $11,259; underestimates C. $26,877; overestimates D. $9383; underestimates
Fill in the blank with one of the words or phrases listed below. Some words may be used more than once. 
= tax rate ? purchase price.
A. Commission B. Sales tax C. Total price D. Amount of discount
Solve the problem.The manager of a coffee shop has one type of coffee that sells for $5 per pound and another type that sells for $12 per pound. The manager wishes to mix 60 pounds of the $12 coffee to get a mixture that will sell for $10 per pound. How many pounds of the $5 coffee should be used?
A. 42 lb B. 24 lb C. 12 lb D. 84 lb
Complete.1400 mm = 
m
A. 140 B. 1.4 C. 14 D. 0.14