help please asap

You make semi-annual deposits for 5 years (beginning 6 months from now so there are two deposits in the first year) into an account with an interest rate of 3.45% compounded monthly. Hint: vince the deposits are semi-annual we need to solve for a semi-annual effective interest rate.) When solving for the semi-annual effective interest rate what is the exponent (z) in the formula ilet - (1+r/m)^z-12