i need help for the three questions

Use the standard reduction potentials located in the 'Tables' linked above to calculate the equilibrium constant for the reaction: Fe2+(aq)+Cd(s)Fe(s)+Cd2+(aq) Hint: Carry at least 5 significant figures during intermediate calculations to avoid round off error when taking the antilogarithm. K= G for this reaction would be than zero. 1 more group attempt remaining Use the standard reduction potentials located in the 'Tables' linked above to calculate the equilibrium constant for the reaction: Cu2+(aq)+Ni(s)Cu(s)+Ni2+(aq) Hint: Carry at least 5 significant figures during intermediate calculations to avoid round off error when taking the antilogarithm. K= G for this reaction would be than zero. Use the References to access important values if needed for this question. Use the standard reduction potentials located in the 'Tables' linked above to calculate the equilibrium constant for the reaction: Sn2+(aq)+Cd(s)Sn(s)+Cd2+(aq) Hint: Carry at least 5 significant figures during intermediate calculations to avoid round off error when taking the antilogarithm. K= G for this reaction would be than zero. 1 more group attempt remaining