foster is centering a photo that is 3 1/2 inches wide on a scrapbook page that is 12 inches wide. How far from each side of the page should he put the picture?
The answer is that Foster should position the page so that the picture is 4.25 inches away from each side. We can reach this conclusion by first subtracting 3.5 from 12 to get 8.5 inches, and then divide this by 2 to get 4.25 inches.