Answer:
1) 18 m^3
2) 2 rows per layer.
3) 3 bales per row.
Explanation:
Volume of bale = 1 m^3
Layer has 3 layers tall ams 6 layers.
Total volume = 1 x 3 x 6 = 18 m^3
The most stable arrangement will be to have 2 rows of 3 bales per layer.
There could be 3 bales per row