Answer:
G.
I'm not too sure though.
Explanation:
Coal, and oil.
Theres not really an explanation this has to do with facts. I hope this helps. Please mark brainliest!!
x=6.6
DE is 16.2
10x + 15 = 81
10x = 81-15
10x = 66
DE = 2x + 3
DE = 13.2 + 3
DE = 16.2
