HELP CHEM!!!!!!!!!!10 PTS?

Canadian 10¢ and 25¢ coins are made of pure nickel which has a density of 8.902 g/cm3. Suppose each dime weighs 2.08 g and each quarter weighs 5.20 g. A small collection of dimes and quarters are submerged in 10.00 mL of water in a graduated cylinder causing the water level to rise to the 19.23 mL mark. What is the combined monetary value (in Can$) of those coins?