8 For four years, Marty Campbell Invested $4,000 each year in Harley-Davidson. The stock was selling for $74 iIn 2014, $62 in 2015. $51 In 2016, and $59 In 2017 a. What is Marty's total investment in Harley-Davidson? points Total investment eBook Pont Reterences b. After four years, how many shares does Merty own? (Do not round intermediate calculetions. Round your answer to 1 decimal place.) Number of shares c. What is the average cost per share of Marty's investment? (Use the rounded number of shares computed in part b. Round your answer to 2 decimal ploces.) Average cost per share