if a rectangle has 8ft base and a 3ft heignt, how nuch must eh heignt be incresed to make a new area of 56 sq. ft.? Hint:let the new height be x plus the old height
From the wording and hint, since area = height times width, this is the formula:
(X + 3) * 8 = 56
Solve for X.
I hope this helps. Thanks for asking.