Acomputer store bought a program at a cost of $10 and sold it at a selling price of $14. find the percent markup.

In the diagram, the ratio of ab to ae is (1/2) . what is the ratio of the length of to the length of ?

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?

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?