Answer:
Explanation:
The rule that relates the number of months (m) to the cost (c) of a gym membership is:
c = 15m + 25
To find the cost of a 1 year (12 months) membership, we substitute m = 12 into the equation:
c = 15(12) + 25 = 205
Therefore, the cost of a 1 year membership is $205 (which includes the $25 sign up fee).