A cars gas mileage refers to its rate in miles traveled per gallon of gas. Kara's family is thinking about renting a camper that can travel 3½ miles on ⅓ gallon of gas. Kara wants to know the gas mileage of the camper. Which complex fraction represents the campers gas mileage in miles per gallon?

1/3 over 7/2

1/2 over 1/3

3 over 1/3

7/2 over 1/3

Which division expression represents the campers gas mileage in miles per gallon?

1/3 ÷ 7

1/3 ÷ 7/2

7/2 ÷ 3

7/2 ÷ 1/3​