I think it’s c hope this helps
Ans
x = -24
x = 6 2/3
workings in the pic below :)
sry if it’s incorrect
Answer:

Step-by-step explanation:
step 1
Find the volume of the tank

step 2
we know that
If the tank is 1/3 full of water
then
the volume of water required to completely fill the tank is equal to 2/3 of the tank capacity
so
