Over a four-year period, Matt Ewing purchased shares in the Oakmark I Fund. Use the following information: Yes 2016 2017 2018 2019 Investment Amount $ 7,200 7,200 7.200 7,200 Price per Share 3 58 per share 41 per share 40 per have 51 per share (a) At the end of four years, what is the total amount invested? Total amount invested (b) At the end of four years, what is the total number of mutual fund shares purchased? (Round your intermediate calculations and answer to 4 decimal places.) Total number of mutual fund shares (c) At the end of four years, what is the average cost for each mutual fund sharo? (Round your intermediate calculations to 4 decimal places and answer to 2 decimal places.) Average cost of each mutual fund share