Answer:
C. the average total cost for the first month of a gym membership
Step-by-step explanation:
x=1 is for month 1,
the value of y includes 1-month fee and one off payment, so this is the average total for the first month of membership
The sequence is Geometric
((3-.5)/.5) x 100
that will give you your answer
Answer: 8.4
Step-by-step explanation: