Jackie followed these steps to evaluate the expression 15-(37+8)÷3 mark looks at jackies work and says she made a mistake he says that she should have divided by 3 before she subtracted

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.