if its wrong that means you didn't explain it correct tell me if its wrong and ill solve it correctly if you say what's the width, length and height the answer is down below.
Answer: 236 in²
I would answer, but I don’t see the graph. If you add the graph I could help (if you want of course, not trying to be rude. Sorry!)
69.78+26.73-100 just use your calculator and you will out and that a hint
The answer to 20+50 is 72