What times what equals 20 and adds to -9

You went to a restaurant and spent $53.25 on the meal. there was a 6% sales tax. what was the amount of money, not including a tip, you spent at the restaurant?

The drawing plan for an art studio shows a rectangle that is 11.2 inches by 8 inches. the scale in the plan is 2 in.: 5 ft. find the length and width of the actual studio. then find the area of the actual studio.

Solve for x. 5(х – 10) = 30 — 15х x = 1 x = 4 х = 5 х = 8