need help with 12 and 13

Question 12 (1 point) What's the present value of $2,562.34 discounted back 13 years if the appropriate interest rate is 6.53%, compounded semiannually? O a) $1,111.36 Ob) $1,580.63 Oc) $1,409.92 Od) $1,961.60 Oe) $2,093.71 Question 13 (1 point) Lenk Company preferred stock pays a dividend of $4.25 per year for each share with the next payment due at the end of one year from today. The preferred dividend is expected to continue perpetually at $4.25 (that is, it is expected to continue forever), You require a 4% return on this investment. How much is this security worth (what is the present value)? (Answer to the nearest cent. i.e. one thousand dollars would be entered 1000.00) Your