(20 pts!) i really need help on this homework! I tried doing the first two but in stuck on the rest!

Answer:
3. 7.276/27.151 = 0.268ml (I approximated it)
4. 3.167/37.206 = 0.0851ml
5. 25.34/18.78 = 1.348gm
6. 42.203x3.96 = 167.123gm
7. 44.70/37.44 = 1.194ml
8. object A on bottom and B on top.