Question

how many inches are in 1 mile? (5280ft = 1mi; 12in = 1ft)
63660in
63066in
63360in
66330in

Explanation:

Step1: Convert miles to feet

Since 1 mile = 5280 feet.

Step2: Convert feet to inches

As 1 foot = 12 inches, then for 5280 feet, the number of inches is $5280\times12$.
$5280\times12 = 63360$ inches.

Answer:

63360in