I need help fast please !!

Step-by-step explanation:

Using the rules of indices multiply the terms

That's

Applying the same rule we have

Using the rules of indices since they are dividing we subtract the exponents

That's

And

So we have the final answer as

Hope this helps you

14 ft 7 inches

step-by-step explanation:

since each model inch corresponds to 25 real inches, 7 model inches will correspond to

7×25" = 175"

at 12" per foot, that is 14 feet, 7 inches.