Question

Can someone please answer. There is one problem. There's a picture. Thank you!

Answer 1

Volume of a tank is:
V = r² π H = 0.75² · 3.14 · 2 = 3.5325 cubic feet
For propane: 
3.5325 · 2,516 = 8887.77 ≈ 8888 BTU
Answer: D)