How much should Damien invest at the end of each month at a 2% APR to have $4000 in 5 years? Round to a whole number. Select one: O a. $4420 O b. $80 O c. $63 O d. $3620 O e. None of these Suppose the buying power of a dollar decreases by 3.2% this year. What is the rate of inflation? Select one: O a. None of these. O b. 5.2% O c.7.1% O d. 2.6% O e. 3.3%