While on vacation, you rent a scooter. You pay $7.50 for each hour you use it. It costs $3 to rent a helmet. Write an algebraic expression that describes the total cost in terms of hours, x, that you rent the scooter.
HINT: Use the table to help you write the expression.
The hourly cost of using the scooter is $7.50. Let's say you use it for x hours. The cost for x hours would be 7.50x.
In addition to that, there is a fixed cost of $3 for renting the helmet. Hence, the total cost in terms of hours rented x would be 7.50x + 3.