Hi
Volume of this container: Convert everything into centimeters. Since there are 2.54 centimeters in a inch, multiply that to 7 and 13 inches. So you get 6 centimeters, 17.78 centimeters (7 inches), and 33.02 centimeters (13 inches).
Now multiply everything. 6*17.78*33.02=3522.5736 centimeters squared.
I am not sure of the rest of the questions but I know that in order to solve all the problems, convert them into the same unit of measurements or otherwise it is wrong. If u tell me the other questions, I can probably help you.
Hope this helps!