The area of a rectangular photograph is 35 square inches. If the width of the photo is 5 inches, how tall is the photo.

Area is length times width.

So you can make a equation. 5*w=35

Where w is length (height)

35/7=5 so 5*7 is 35

the photo is 7 inches tall

You first need to take the area and divide it by the width or height (it doesn't matter) so ... 35 divided by 5 (the width) is 7 _ your answer is = the height of your photo is 7 inches