Step-by-step explanation:
How are we supposed to find volume if you don't enter the other elements I.e width, length and height?
But just in case the formulae for finding volume is to multiply is elements. So to find volume multiply is width, length and height.
C= 8x + 5y
y-number of child tikets
C-8x= 5y
(C-8x)/5 =y
First option from up to down
The answer is x= -6/7<span><span></span></span>
