Question 1040598
a.  Po(1+0.08/1)^4.  The one is the number of compoundings a year, and 4 is the total number of compoundings in the interval.  It is $1088.39
b. Po(1+0.08/2)^8. The interest rate is halved inside, but the total number of compoundings have doubled.  $1094.86.  It should be a little more than annually and less than quarterly.
c. Po(1+(.08)/4)^16=$1098.23
d. Po(1+(.08)/12))^48=$1100.53