Is that the exact wording of the question ? And do you have any answer choices or is it a free answer question ?
The answer to this is 360
. In short is song/song = hour/hour that gives 15/2.5 = 18/h
This proportion also could be written as : 2.5/15 = h/18
the numbers of the width and length
Step-by-step explanation: you need to because with it what are you figuring out