assume that Ryan does save 10% for retirement. if he allocates the reminder of his take- home pay to entertainment, then what percent will entertainment comprise of the total monthly budget?how much will be budgeted towards entertainment

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b

Plz hurry evaluate the expression a+b where a=8 and b=19

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?