There is a sales tax of
$
5

on an item that costs
$
63

before tax. a second item costs
$
50.40

before tax. what is the sales tax on the second item?

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827

Ten members of balin's soccer team ran warm ups for practice. each member ran the same distance. their combined distance was 5/6 of a mile. to find the distance that each member ran, balin wrote the expression below.