Problem $11-9$ Using Dollar Cost Averaging $[$LO$5]$

For four years, Marie invested $$4,600$ each year in a bank$$s stocks. The stocks sold for $$36$ in $20$X$1,$ $$50$ in $20$X$2,$ $$47$ in $20$X$3,$ and $$59$ in $20$X$4.$

a$.$ What is Marie$$s total investment in this bank? $($Omit the $"$$$"$ sign in your response.$)$

Total investment $

b$.$ After four years, how many shares does Marie own? $($Round your intermediate calculations DOWN and round your final answer DOWN to the nearest whole share.$)$

Total number of shares

c$.$ What is the average cost per share of Marie$$s investment? $($Round DOWN your intermediate calculations to the nearest whole share. Round your final answer to $2$ decimal places. Omit the $"$$$"$ sign in your response.$)$

Average cost per share $