If the area of a trapezoid is a=1/2h(a +b) solve for h

Translate this phrase into an algebraic expression. 21 more than twice goran's savings use the variable g to represent goran's savings. need to know fast.

The estimated number of people to attend the last bengals game of the season was 2000. the actual number of fans attending was 1200. by what percent did the estimate differ from the actual?

Which rule describes the composition of transformations that maps △abc to △a”b”c