Question 7 10 pts Mark Johnson saves a fixed percentage of his salary at the end of each year. This year he saved $2,000. For each of the next 5 years, he expects his salary to increase at an 9% annual rate, and he plans to increase his savings at the same 9% rate. There will be a total of 6 investments, the initial $2,000 plus five more. If the investments earn a return of 11% per year, how much will Mark have at the end of six years? O $15,424.68 O $19,331.44 O $15,046.67 O $21,559.72