Aparticular shade of paint is made by mixing 5 parts red paint with 7 parts blue. to make this shade, shannon mixed 12 quarts of blue paint with 8 quarts
of red paint . did shannon mix the correct shade? explain

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.