Tom and his best friend are going to join a gym. tom saw that platinum gym has a sale with a one time fee of $90 and a monthly fee of $30. tom's friend sees that super fit only charges $20 a month, but its registration fee is $200. write an equation that shows the membership cost for each gym (2 points). if tom joins platinum gym, how much would it cost for 6 months? (1 point) how much would it cost for tom to join super fit? (1 point) how many months until it costs the same amount of money for both gyms? (2 points-show your work) which gym deal is a better deal? (2 points for explaining)