I will set it up for you only.
Let a = adult tickets
Let s = student tickets
Here is your system of equations:
a + s = 800
12a + 8s = 7500
 
        
             
        
        
        
<span>The slope of a line is defined as the rate of change on the vertical axis, divided by the rate of change on the horizontal axis, Δy/Δx. So for a horizontal line, the rate of change on the y axis is zero, this means that it's slope will be 0/Δx and for vertical line, x-axis does not change, which make the denominator 0 Δy/0.</span>
        
             
        
        
        
Answer:
Step-by-step explanation:
The formula for the surface area of a prism is obtained by taking the sum of (twice the base area) and (the lateral surface area of the prism). The surface area of a prism is given as S = (2 × Base Area) + (Base perimeter × height) where "S" is the surface area of the prism.
 
        
             
        
        
        
THE CORRECT ANSWER WAS 
$160.26
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Whenever you study try not to study in your bed so that you don’t fall asleep too easily also set a timer for maybe 20 minutes and then take five minute breaks in between to get a snack or glance at your phone or just relax. Try not to overwork yourself.