$58-$25=x this would be the equation i believe
Answer:
−9
Step-by-step explanation:

The rectangle on the right is 81 and the rectangle on the left is 24. I don't really know about the second one sorry, but I hope this helped.
Answer:

Step-by-step explanation:
Total Volume of Water = 
Volume drunk by James =
Volume drunk by Simon =
Volume drunk by Matthew = 
Volume drunk by Gilbert =
Total Volume Drunk (i.e. The Sum) = 
Volume of water Left = Total Volume of Water-Total Volume Drunk
= 