Meghan's home is on the same straight road as the library and sporting goods store. Meghan marks the location of the library and
the location of the sporting goods store on a number line, using her home's location as 0. She marks the library at −3.7 and the sporting goods store at 12.5. What is the distance between the library and the sporting goods store on Meghan's number line? Enter your answer as a decimal in the box.
