The first thing that we want to look at is that they have no more than $110, so we want our total cost to be less or equal to than 110, giving us the right hand side of the equation as " ≤110". Parking is a flat fee of $19.25 regardless of the number of people attending, then the cost of the tickets will be the cost of one ticket, $30.25, multiplied by the number of people. This given us the left hand side of the equation "19.25 + n30.25", where n is the number of people. Putting together the left and right hand side, we obtain
The next part is to solve for n, which we do by first subtracting 19.25 from both sides, then dividing both sides by 30.25:
n ≤ (110-19.25)/30.25
n ≤ 3
So, the maximum amount of people who can go to the theme park is 3.