please help!

The following data were collected for a piece of plastic. First the dry plastic was weighed. Then a graduated cylinder was partially filled with water and the water volume was read. Then the plastic was carefully immersed in the water and the volume was read again. First calculate the volume of the plastic, then use that volume to calculate the density of the plastic in units of g/mL. Enter the density in the box below. IInclude two decimal places in your answer. Do not type the units.]