SAT Question 12255364: Linear Equations In One Variable answer and explanation with Desmos solution

Choice C is correct. It's given that a gym charges its members a onetime $$36$ enrollment fee and a membership fee of $$19$ per month. Let $x$ represent the number of months at the gym after which a member will have been charged a total of $$188$. If there are no charges other than the enrollment fee and the membership fee, the equation $36+19x=188$ can be used to represent this situation. Subtracting $36$ from both sides of this equation yields $19x=152$. Dividing both sides of this equation by $19$ yields $x=8$. Therefore, a member will have been charged a total of $$188$ after $8$ months at the gym.