All you have to do is divide 190 liters by 3.8 liters. To get the calculated amount of gallons.
I think its A.Hope that helps :)
The volume of the pyramid is 
Explanation:
It is given that the base of the pyramid is a right triangle.
The formula to determine the volume of the pyramid is given by

where l is the base length of the pyramid,
w is the base width of the pyramid and
h is the height of the pyramid.
From the figure, we can see that,
,
and 
Substituting these values in the formula
, we have,

Multiplying the numerator, we get,

Dividing, we get,

Thus, the volume of the pyramid is 
Answer:
If i did the math rightthe answer would be 120 adult tickets sold.