need answer as soon as possible

Help Save & Exit Submit For four years, Marie invested $4.500 each year in a bank's stocks. The stocks sold for $39 in 20X1, 552 in 20x2.538 in 20X3, and $60 in 20X4 a What is Marie's total investment in this bank? (Omit the "S" 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 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 "S" sign in your response.) Average cost per share