5.5 g of metal is placed in a graduated cylinder containing water. The level of water increases from 12.0 ml to 13.5 ml. The density of the metal is g/ml. (Use the correct number of significant figures in your answer)

3.7 g/mL

Explanation:

The volume is the difference of the ending level and the starting level of the water which was:

13.5 mL - 12.0 mL = 1.5 mL

Density is calculated Mass/Volume.

5.5 g / 1.5 mL = 3.66666.. --> 3.7 (using the correct number of significant figures.)

c. 75.7

i think that is the right