I'm relatively sure that it is 9 but idk rly. Hope this helps!
Answer:
Below.
Step-by-step explanation:
First draw an angle of 90 degrees.
Then bisect it to give an angle of 45 degrees.
Finally bisect the 45 degree angle.
4g/cm^3
D = M/V
100g/25cm^3 = 4g/cm^3
