D because it says you will be getting at least 4500 or more dollars by adding the adult and student tickets
In order to find this you need to assume that they are declared as X and as X + 2. This makes the formula for calculating it x (x+2)=483, and this, based on the formulas for calculation, equals
x^2+2x-83=0
From this we can see that a negative X is -23, which when +2 is added results in -21.
The answer is a hope this helps
