Eat more
Force yourself to eat every 2 - 3 hours and as much as you can. Over the course of a week your appetite will start to increase where you can eat larger amounts without filling so fast. Drink water too after meals to expand your stomach as much as you can. Then you will be able to eat...
I made 2 errors which gave me the correct answer lol. When finding volume of water on roof I got 1.08L instead of m3
Then when finding height I subbed in 1.08L as V instead of 1.08m3
You fucked up your V value, 1.08/1000 = 0.00108m^3
Also you used the diameter instead of radius
The correct working is
A=n*1.8^2
=10.179
Volume of water = 216*0.005
=1.08m^3
1.08=10.179h
h = 10.6cm increase
I got 10.6cm as my answer but made 2 errors in my working for my exam where I mixed...