You want to determine the height of your school building. The building casts a 6-foot shadow at the same time you cast a 15-inch shadow. If you are 5 feet tall, how tall is the school building (in feet)?

provide a drawing

5 feet = 60 inches, and by dividing your height (60 in) by your shadow length (15 in), we get 4, which means you're 4 times taller than your shadow. Putting that on the school building, the building should be 4 times taller than it's shadow of 6 foot, 4x6=24, so the school building is 24 foot tall