A car rental agency rents 420 cars per day at a rate of $20 …
A car rental agency rents 420 cars per day at a rate of $20 per day. For each $1 increase in rate, 10 fewer cars are rented. Find the function that represents the revenue. At what rate should the cars be rented to produce the maximum revenue? The revenue function is R(x) = . The rate that will yield maximum revenue is .