George washed cars for four hours on Saturday in the first hour he wash four cars in the second hour he watches seven cars in the third hour HE washed 9 cars how many cars did he wash in the first three hours

Simplify 4^2 ⋅ 4^8. A) 4^16 B) 4^10 C) 1^616 D) 1^610

Simplify the expression below (3xsquaredy-5xy+12xysquared) - (5xysquared + 4xy)

Which ratios form a proportion? 1 / 6 & 3/8? 2/3 & 8/12? 2/5 or 5/2? or. 3/4 & 9/16?

Write this word sentence as an inequality. A number y is greater than 1 and is less than or equal to 8.

Find the amount of air it would take to fill a basketball if the diameter of the ball is 12 inches

Center c of the circle above has coordinates of (4, 3). what is the circumference of the circle?

The perimeter of a rectangle is 68 cm. The length is 4 cm more then it's width. Find the dimensions of the rectangle

Dave buys a baseball for $15 plus an 8% tax. Mel buys a football for $20 plus an 8$ tax. How much did each person pay?

Simplify (-80/-20) -4 4 -40 40

Suppose that the following relations are defined on the set A = {1, 2, 3, 4}. R1={ (2,2), (2,3), (2,4), (3,2), (3,3), (3,4) }, R2={ (1,1), (1,2), (2,1), (2,2), (3,3), (4,4) }, R3={ (2,4), (4,2) }, R4={ (1,2), (2,3), (3,4) }, R5=