What is the common difference of the sequence 16, 48, 80...?

The larger of two number is 4 less than twice the smaller number. the sum is 41. find the numbers

2/3(-6y+9x) expand each expression using the distributive property

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?