Rachel is going on a vacation. She is trying to figure out how much
money to bring along. She plans to spend $120 on hotels, $45 on
gas for her car, and $65 on food. She is also going to go to an
amusement park twice. Tickets to the amusement park cost $30
per day
If she wants to have $30 left in her wallet after the trip is over, how
much money should she bring?