using the price p=20 - .05x, use the Revenue function to find the marginal Revenue function R'(x), Find

a. R'(100)=

b. R'(175)=

c. R'(250)=

The marginal Revenue R'(x) approximates how the revenue will change on the sale of the next item.

a. Given R(100) = 642 and R'(100)= 18 then R(101)

b. Given R(400) = 16,250 and R'(400)= -10 then R(401)

c. Given R(1000) = 3500 and R'(1000) = 3 then R(1001)