Answer:
He can travel 105 miles on 5 gallons.
Step-by-step explanation:
First, you want to divide 336 by 16 to get the unit rate. The unit rate will be 21. That means he can travel 21 miles on 1 gallon. Now, all you need to do is multiply 21 and 5 to get how many miles he can travel on 5 gallons. That would be 105 miles. Hope that helps! : )