The total profit (P) in dollars of selling toy boat for n boats is given by the function

P (n) = 9n - 400. If the total profit was $1265.00, how many boats were sold?

141 10,985 96 185

Let's make the equation equal to the total profit.

9n-400=1265; we need to find n. Let's start by adding 400 to both sides. 9n=1665; let's divide each side by 9. N=185

So, there were 185 boats sold.