Your local rollerblade rink will rent blades to you for $forty four for five hours or $fifty eight for seven hours. Assume that the price increase is constant depending upon the number of hours the blades are rented.

Define units for the time that blades are rented and the cost to rent the blades. Enter a variable for the time that blades are rented and use this variable to write an expression for the cost to rent the blades.

What is the cost to rent rollerblades for two hours?

How long can you rent the blades if you have seventy-two dollars?