Answer:
16.8 cubic metres
Explanation:
Convert it first to a cubic foot:
1 cubic foot = 6.23 gallons
x cubic foot = 3738 gallons ÷ 6.23 gallons
x = 600 cubic foot
Now convert it to cubic metres:
1 cubic foot = 0.028 cubic metres
600 cubic foot × 0.028 = x cubic metres
16.8 cubic metres = x