X^3 - h^3 + 8 because you cube the variables as well as 2, and 2x2x2=8.
Drifting through the wind, wanting to start again PSHWIWIEI
3 x 25 =75 and then 5 x 8 =40 and you would just add 75 and 40 which is where you would get 115. So the answer would be D 25 child 8 adult
Hope this helps! :)