Question 1:
Rent-A-Reck Incorporated finds that it can rent 60 cars if it charges $40 for a weekend. It estimates that for each $5 price increase it will rent three fewer cars. What price should it charge to maximize its revenue?
How many cars will it rent at this price?
Question 2:
An insurance company has custom envelopes printed for correspondence with its clients. It uses 720 boxes of envelopes annually at a steady rate. It costs $285 for delivery and processing (in addition to the printing costs) each time the company places an order, and it costs $2 per box for annual storage. To minimize costs, how many boxes of envelopes should the company order?
How often should they place an order? (Round your answer to one decimal place.)
Please help me to solve these questions thank you