A builder can buy bolts for $ 0.17 each at the Home Reno store. The store also sells a bucket of 4,000 bolts for $ 595.50 . If the builder buys the bucket, how much money is saved?

Arestaurant offers delivery for their pizzas. the total cost the customer pays is the price of the pizzas, plus a delivery fee. one customer pays $23 to have 2 pizzas delivered. another customer pays $59 for 6 pizzas. how many pizzas are delivered to a customer who pays $86?