Kylie starts with $145 in her piggy bank. each month she adds $20. which recursive function rule models the total amount in kylie’s piggy bank at the end of each month? an=145+an−1 and a1=20 an=145⋅an−1 and a1=20 an=20⋅an−1 and a1=145 an=20+an−1 and a1=145

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?