Answer:
miles
Step-by-step explanation:
In 1 day, you drive
miles <em>[round trip, to and from]</em>
So, in 3 days, you will drive
miles <em>[to and from]</em>
Changing
into improper fraction <em>[for ease of multiplication] </em>and multiplying by 3 gives us our answer:

So, in total
miles are driven in 3 days