in order to get a gym membership, there is an initial enrollment fee of $89.\nonce the enrollment fee is…

in order to get a gym membership, there is an initial enrollment fee of $89.\nonce the enrollment fee is paid, the gym membership is $15 a month.\nwhat is the unit rate/slope?\n○ $89 a year\n○ x\n○ $15 per month\n○ $89 per month
Answer
Explanation:
Step1: Identify linear cost model
The total cost $C$ for gym membership follows the linear form $C = mx + b$, where $m$ is the slope/unit rate, $x$ is the number of months, and $b$ is the fixed initial fee.
Step2: Match values to the model
Here, $b = $89$ (one-time fee), and the recurring monthly cost is $$15$, which is the rate of change of cost per month (slope/unit rate).
Answer:
$15 per month