27; The first stack is 3 x 3 (= 9). You then multiply 9 by 3 (for each of the 3 stacks). Basically, 3 x 3 x 3.
Answer:
9x2 and 9x2
Step-by-step explanation:
1. 21,150
2. 2.5193
3. 27.98
4. 11,100
It’s the second one, 65.4
V=1
6πd3=1
6·π·53≈ 65.44985in³