Question 1129988
Row Z having 58 seats is correct.  Good work. <br>

Not sure what you did to find 1508 seats, since you did not show your work.   Using (average number of seats per row) x (number of rows):    correct total number of seats is  ((8 + 58)/2)*26 = 858    
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For the last part:
let A = number of adult tickets sold
let S = number of student tickets sold
<br>
(eq 1)  A + S = 858    (a ticket for every seat was sold)
(eq 2)  S = 2A
The total ticket sales information will be used later…<br>

Solve to get
A = 286 
S = 572<br>

Now, incorporating the total ticket sales:
Let x = price of student ticket, then 3x = price of an adult ticket 
2860 = A*(3x) + S*(x) <br>

Plug in for A and S, then solve for x to get the price of a student ticket  ($2)