Joey has 30 pages to read for history class tonight. He decided that he would take a break when he finished reading 70% of the pages assigned. How many pages must he read after he takes a break?
Joey will take a break after 30 * 0.7 = <T>multiply(30, 0.7)=21.0 pages
Joey will have to read 30 - 21 = <T>subtract(30, 21)=9 pages more.
