Which expression is equivalent to 10^5? a. 5x5x5x5x5x5x5x5x5x5 b. 5/10 c. 10x5 d. 10x10x10x10x10

Hi, can anyone show me how to do this problem? 100 points for this. in advance

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?

15 oranges weigh 3.75 kilograms (kg). if each orange weighs approximately the same, approximately how much does each orange weigh?