PLEASE HELP ASAP WITH THESE THREE!

Answer:
001: 71.2 g per ML
002: Consider a block of marble that occupies 287 cm3 and has a mass of 869 g.
a. What is its density?
d=m/v=869g/287 cm3=3.03 g/cm3
b. Will it float in:
H2O(l)? Why or why not?
Nope! Density > 1.00 g/mL
Hg(l) (density=13.55 g/mL)? Why or why not?
Yep! Density < 13.55 g/mL
003:
Use the given functions to set up and simplify
0.309 cm3
g/cm3=g/cm3
0.309cm3=g/cm3
Explanation:
http://childschemistry.weebly.com/uploads/7/8/6/3/78638416/density_key.pdf
Hope this helps I tried my best