p rate per room is found by taking $2 off the base of $75 for each extra room rented. (a) How much money do you charge per room if a group rents 3 rooms? $ 71 What is the total amount of money you take in? $ 213 (b) Use a formula to give the rate you charge for each room if you rent n rooms to an organization. 75 - 2n (c) Find a formula for a function R = R(n) that gives the total revenue from renting n rooms to a convention host. R(n) = 75n-2n² (d) Use functional notation to show the total revenue from renting a block of 7 rooms to a group. Calculate the value. R(7 ) = $427 X