SAT Question 6105234d: Linear Equations In One Variable answer and explanation with Desmos solution

Choice C is correct. It's given that John made a $$16$ payment each month for $p$ months. The total amount of these payments can be represented by the expression $16p$. The down payment can be added to that amount to find the total amount John paid, yielding the expression $16p+37$. It's given that John paid a total of $$165$. Therefore, the expression for the total amount John paid can be set equal to that amount, yielding the equation $16p+37=165$.