Over a four-year period, Matt Ewing purchased shares in the Barreau du Quebec Canadian Equity Fund. Using the information below, answer the following questions. 

Year                     Investment               Amount Price per share

2004...................$3,000.......................$40 per share

2005...................$3,000.......................$50 per share

2006....................$3,000.......................$60 per share

2007...................$3,000.......................$45 per share

a. At the end of four years, what is the total amount invested?

b. At the end of four years, what is the total number of mutual fund shares purchased?

c. At the end of four years, what is the average cost for each mutual fund share?