Given:
The equation at hand is:

In this context, x represents the total tickets sold for the school play, while y indicates the total revenue generated from ticket sales.
To find:
The appropriate table of values from the provided options.
Solution:
It's clear that both the number of tickets and the revenue collected cannot be negative, which means that options A and B are not viable.
We have:

For
,


For
,


For
,


For
,


In option C, the ordered pairs (0,0), (10,50), (51,255), (400,2000) are present in the table. Thus, option C is the correct choice.
For 


As the ordered pair (65,350) does not fulfill the requirements of the equation, thus option D is incorrect.
Consequently, the right option is C.
The refrigerant can accommodate 1.92 cubic feet.
For the first film he may pick any of 6 options; once that choice is made, 5 remain for the second, then 4 for the third, and so forth.
Hence the total is 6! = 6*5*4*3*2 = 720 possible orders