You would divide 8 3/4 by 50 to find out how many cups you would get for just one cupcake. So you would do 8 3/4 DIVIDED BY 50= 0.175 which means there will be 0.175 cups of sugar per cupcake.
L = 2W P = 2L + 2W Plug 2W in for L. 54 = 2(2W) + 2W 54 = 4W + 2W 54 = 6W Divide both sides by 6 W = 9 L = 2* 9 L = 18 A = L * W A = 9 * 18 A = 162 units^2