Answer:
The 3 mi is equivalent to 190080 in.
Step-by-step explanation:
As given
1 mi = 5280 ft
1 ft = 12 in
Now first convert 3mi into ft .
3mi = 3 × 5280
= 15840 ft
Now convert 15840 ft into in .
15840 ft = 12 × 15840 in
= 190080 in
Therefore the 3 mi is equivalent to 190080 in.