i need help with my calculations and everything that isnt answered

3- Fill a 100ml graduated cylinder to the 50ml mark with water. Then weigh a metal block on the electronic balance. Carefully slide the metal sinker into the cylinder. Do not drop the block into the cylinder. How much water does it displace? Remember 50 equates to zero as the starting point. Calculate the density of the sinker. a. Weight (mass) of metal block 56.53g b. Volume (the amount of water displaced by the block): 56.249.96.39 c. What is the calculated density of the metal sinker. D=M/V(ab) What is the actual density of the metal? 8.96gmL What is the percent error (1( calculated/actual ))100 ? 4- Measure the same metal block (LWH) to the nearest centimeter. Then weigh the metal block on electronic balance. Calculate the density of the block. a. Weight (mass) of metal block b. Cubic Volume of metal block 7.81cm370.76g c. What is the calculated density of the metal block? D=M/V (ab) What is the actual density of the metal? Check the chemistry handbook in the 8.96cm3 Front of the lab room What is the percent error (1-(calculated/actual ))100