Solve the problem.A coffee house sells coffee by the pound, charging $8.50 per pound for quantities up to and including 40 pounds. Above 40 pounds, the coffee house charges $7.50 per pound for the entire quantity, plus a quantity surcharge, k. If x represents the number of pounds, the price function isp(x) = 
Find k such that the price function p is continuous at x = 40. Then explain why it is preferable to have continuity at x = 40.
A. k = 415; It is preferable so that the coffee house makes a profit.
B. k = 640; It is preferable so that the coffee house does not lose revenue.
C. k = 265; It is preferable so that the coffee house makes a profit.
D. k = 40; It is preferable so that the coffee house does not lose revenue.
Answer: D
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Find the value of b that would cause the graph of y = bx to look like the graph indicated.
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A. 
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Graph the given functions on the same rectangular coordinate system. Describe how the graph of g is related to the graph of f.f(x) = -4x, g(x) = -4x - 4
A. g shifts the graph of f vertically down 4 units
B. g shifts the graph of f vertically up 4 units
C. g shifts the graph of f vertically down 4 units
D. g shifts the graph of f vertically up 4 units
Convert.18,000 cm = _____ km
A. 1.8 B. 0.018 C. 0.18 D. 0.0018