Question

A gym membership costs $25 to join and $14 each month. Write and use an algebraic expression to find the cost of the gym membership for 6 months.​

Answer 1

See below.

Explanation:

So we know that a gym membership costs $25 plus $14 each month.

In other words, the one-time cost is $25 and there will be a cost of $14 each month.

We can write this as:

`f(x)=14x+25`

Where f(x) equals the total cost given the number of months x.

For 6 months, the total cost will be:

`f(6)=14(6)+25\\f(6)=84+25\\f(6)=\$ 109`