The cost of a gym membership if there is a $50 enrollment fee and the charge is $35 a month.

To calculate the cost of a gym membership with a $50 enrollment fee and a monthly charge of $35, you would add the enrollment fee to the total cost of the monthly charges for the desired duration of the membership.

Let's assume we want to calculate the cost of a 1-year membership:

Enrollment fee: $50
Monthly charge: $35

Total monthly charges for 1 year: $35/month x 12 months = $420
Total cost of gym membership for 1 year: $50 (enrollment fee) + $420 (monthly charges) = $470

Therefore, the cost of a gym membership for 1 year with a $50 enrollment fee and a monthly charge of $35 would be $470.