A) platinum gym : Cost = 60+20x
B) super fit: Cost = 150+10x
C) 1st month Platinum costs 60 +20(1) = $80 and super fit costs 150 +10(1) = $160, so Tom Pays less after 1 month
1 year: Platinum = 60+20(12) = 300, Super fit = 150+10(12) = 270, so Edward pays less after 1 years
D) 60+20x = 150+10x
20x = 90+10x
10x = 90
x = 90/10 = 9,
9 months it would cost the same
E) Because super fit costs less per year, it should be a better deal, but since most people do not continue going to a gym for a long time Platinum gym would be a better deal
