Tony's Baby-sitting service charges $8.50 per job plus $6.75 per hour. What is the cost of a 7-hour baby-sitting job?

Using the information above, you can create an equation for your problem.

8.50+6.75h=t

h=hour

t=total

We want to know how much for a seven hour job, so we can plug the seven into the h (hour) value.

8.50+6.75 (7) = t

Now we solve for t.

8.50+47.25=t

55.75=t

This gives us our answer. It would cost $55.75 to have Tony babysit for seven hours