Acountertop is in the shape of a trapezoid. the lengths of the bases are 70.5 and 65.5 inches long. the area of the countertop is 1224 square inches. write and solve and equation to find the height of the countertop.

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle.he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field