Hose a can fill a bucket in 2 minutes and hose b can fill the same bucket in 3 minutes. how long would it take to fill the bucket if both hoses were used at the same time? use linear relations.

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?