For this case, the first thing we must do is define variables.
We have then:
x: number of months
y: total cost
We write the algebraic expression that models the problem:
A gym membership costs $ 25 to join and $ 14 each month.
We have then:
For 6 months the cost is:
Answer:
an algebraic expression to find the cost of the gym membership is:
the cost for 6 months is:
![y = 109](https://img.qammunity.org/2019/formulas/mathematics/middle-school/y2guiu98rethpc4mr9bc3obbodyk4ttdu8.png)