Agroup of 7th and 8th graders were asked if they like playing tennis. this two-way frequency table shows the proportion of students from each grades that like or do not like playing tennis.

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?