A store owner paid $15 for a book. She marked up the price of the book by 20% to determine its selling price. What is the selling price, in dollars, of the books?

What is the best approximation for the area of a circle with a radius of 4 m ? use 3.14 to approximate pi

Acomputer store buys a computer system at a cost of $370.80. the selling price was first at $ 618, but then the store advertised a 20 % markdown on the system. answer parts a and b. a. find the current sale price.

Solving algebraic equations 2m+3=11