Lucinda babysits after school. She makes $12 an hour. The number of hours that Lucinda babysits each week varies. Which equation represents the amount of money that Lucinda makes each week?

Lucinda babysits for 7 hours one week and makes $12 an hour. Using the equation a = 12(h), figure out how much Lucinda makes.

Charlie and his friends spend Saturday driving go-karts. It costs $8 an hour to drive go-karts. Charlie has m dollars to spend. The number of hours (h) that Charlie can drive go-karts for depends on the cost. Which equation would be used to figure out how many hours Charlie can drive go-karts?