Considering the given equations for the revenue and the cost, it is found that 36 tickets have to be sold each night to break even.
The break-even point is when the revenue and the costs are equal.
In this problem, the equations are given as follows:
At the break-even point:
R(x) = C(x)
15x = 1.25x + 495
13.75x = 495
x = 495/13.75
x = 36.
36 tickets have to be sold each night to break even.
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