Monica deposited $760 into an ordinary annuity after each quarter for 2 years at 4% interest compounded quarterly. Determine the (a) future value of each account and (b) the total interest amount earned.

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?