Gabriel owns a babysitting service. He charges $8 per hour to babysit. Write an equation using two variables to show the relationship between the number of hours he babysits, h, and the total amount of money, t, he earns after 6 hours.

Let's write t as the total amount of money and h as the number of hours. The equation will be:

t = 8h

Since Gabriel babysits for 6 hours, we need to substitute "6" for "h" in the equation:

t = 8(6)

t = 48

So, Gabriel earns $48 after 6 hours of babysitting.