The Management of a small fast-food chain believes that t days after the end of an advertising campaign, the rate at which the volume V (in dollars) of sales is changing is well approximated by the exponential function V’(t)=-29,000e^-0.46t. On the day the advertising campaign ended (when t=0) the sales volume was $130,00.

(A) find and interpret the rate of change V’(5)

(B) find the function V’(t) which gives the volume of days after the end of the campaign

(C) Find and interpret V(5)