Select all the expressions that can be used to find the area of the polygon. 18 ft 9 ft 6 ft 20 ft answer choices: (920) - 6 (9 x 18) – (6 x 2) (9 x 18) + (6 x 2) (20 x 6) + (18 x 3) (209) - (3 x 2)
There are 15 plates and each plate is either 7 or 12 inches diameter. which systems of equations do you use to find the number of 7 inch plates, x and 12 inch plates, y