Question

I need help with number two. Please explain to me how to get the answer

Answer 1

The answer would be 5,280m. You are trying to find out how many feet are in ___ miles, so you multiply the m amount of miles to how many feet are in each, 5,280.

Answer 2

5,280m

Let's use a real number comparison.
5280 x 1 = 1 mile
5280 x 2 = 2 miles
5280 x m = m miles