Im so confused and this is a HUGE grade please help!

15 ft

Step-by-step explanation:

1 inch: 3 feet is a ratio so to get 5 inches, the 1 was muliplied by 5 so you just do the same to the 3 feet. Multipiy 3 by 5 and you get 15 feet.

Correct me if I'm wrong though, its been a while since I did these.

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b