Suppose that for a company manufacturing calculators, the cost, revenue, and profit equations are given by

C=70,000+30x,

R=200xx220,

P=RC

where the production output in 1 week is x calculators. If production is increasing at a rate of

600

calculators per week when production output is

5,000

calculators. Find the rate of increase (decrease) in cost, revenue, and profit.

Question content area bottom

Part 1

A) Costs are

increasing

decreasing

at the rate of

$enter your response here

per week at this production level.

(Simplify your answer.)

Part 2

B) Revenue is

increasing

decreasing

at the rate of

$enter your response here

per week at this production level.

(Simplify your answer.)

Part 3

C) Profits are

increasing

decreasing

at the rate of

$enter your response here

per week at this production level.

(Simplify your answer.)