Doubles facts is think of a number for example X, where X=1. Doubles is 2x which is 1*2=2, 1*2 is the same as 1+1. Its add the number to itself.
5 feet is equal to 60 inches
Mathematically, that is 12(8+t). Distribute the 12, and you get 96 + 12t, or 12t + 96.
