The area of table cloth required to cover the table exactly is 450cm². The two parallel sides are 45cm and 55cm. Find the distance between these two sides

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

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.

Asporting good store is offering 30 percent off of the original price(x) of football cleats. the discount will be reduced by an another $7 before sales tax.