Which number is rational and a real number but not an interger

The spring the owner of a sporting good store decreases the price of winter gloves from $10 to $8 each increases the price of swimming goggles from $8 to $10 without doing the math you think the percent decrease in the price of the gloves the same as the percent increase of the goggles explain why or why not

Solve the equation -9p - 17 =10 a -3 b. 16 c. 18 d -16

Find the solution of this system of equation -7x+y=-20 9x-3y=36