Gym a has an initial fee of $50 and a monthly fee of $10. Gym B has an initial fee of $30 and a monthly fee of $15. Which system can be used to find the membership time required for each gym to cost the same

a - y=50+10x

y=30+15x

b - y=50x+10

y=30x+15

c - y=50+10

y=30+15

a - y=50+10x

y=30+15x

Step-by-step explanation:

Since the initial fee of $50 and $30 is a single fee and will never be charged again it will remain alone. Since the $10 and $15 are a monthly charge they must be multiply by how ever many months it takes to make the equal to one another.