How do you answer this question

Question

While visiting Newport, Colton can pay a flat rate of $18 for parking or $6 per hour. For the length of time that Colton wants to park in Newport, the two options are actually equivalent in terms of cost. For how long does Colton want to park? How much will Colton pay?

help me with this one

Answer 1

18 = 6h

Can you solve for h and anser?

Answer 2

He can park for 3 hours, since 3 x $6/hour = $18. If he parks for more than 3 hours, he would be better off paying the flat rate.