You know that 4 pizzas will feed 16 people how many pizzas do you need to feed 88 people?

Explain the answer and how to do it

X+ y = 5 ; x - y =3 solve using linear combination

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.