pl awnsr this for me

Question

Tammy wants to join a gym.  Gym A charges a joining fee of $54 plus $27 per month.  Gym B does not have a joining fee and charges $36 per month.  How many months would Tammy need to be a member for the total cost of Gym A to be less than the total cost of Gym B?

Answer 1

54 + 27M < 36M

9M <54

M <54/9 = 6 months

more than 6 months for Gym A to be cheaper

6x36 = 216

27x6=162 + 54 = 216 they cost the same at 6 months. additonal months make Gym A cheaper