Your gym membership costs $30 to join and $25 per month. which equation gives the total cost, y, for a membership that lasts x months? 25x? 30=y 25x+30=y 25x=30y 25+30x=y

2.

Step-by-step explanation:

Let y be the total cost for gym membership.

It have been given that your gym membership costs $30 to join and $25 per month. This means that $30 is constant value of our equation and 25x will be the cost for a membership that will last for x days.

We can write an equation that gives the total cost for a membership of x days by equating y with sum of joining charges and cost of membership for x days :  

Now let check which of the given choices is correct.

1.

In our first option sign between 25x and 30 is not clear, therefore, our first option is not correct.

2.  

Upon looking at our given choices we can see that expression represented by 2nd option is exactly same as our expression, therefore, 2nd option is the correct choice.

3.

We can see that constant value ($30) in being multiplied by total cost(y), therefore, our 3rd option is not a correct choice.

4.  

We can see that in this expression per month cost is changed with constant value, which means that cost for per month membership is $30 and joining charges are $25, therefore, 4th option is not a correct choice.

in mathematics, a function is a relationship between two variables such that the value of one of the variables, called the dependent variable, is determined by the value of the other variable, called the independent variable. there is a specific term we use to describe the set of independent variables of a function.

option: d is correct

step-by-step explanation: