Challenge y=mx+b

Question

A bowl alley charged a family of 4 $112 to play 4 games plus a one time fee of $12 for shoes. If they wanted to go next weekend, how much would it cost to play 6 games?

Answer 1

The 6 games cost one and a half times the cost of 4 games, $168.

Add the rental for shoes, and how much should they plan.