Suppose That the Monthly Revenue and Cost (In Dollars) for X

Multiple Choice

Suppose that the monthly revenue and cost (in dollars) for x units of a product are . At what rate per month is the profit changing if the number of units produced and sold is 100 and is increasing at a rate of 10 units per month? ​

A) $8,900 per month
B) $8,500 per month
C) $8,550 per month
D) $8,400 per month
E) $8,800 per month