Assume you can earn 7% on the investments described below. How much money would each investment provide for you after six years? a. Invest $6,300 as a lump sum today. b. Invest $2,180 at the end of each of the next 6 years. c. Invest a lump sum of $3,605 today and $1,253 at the end of each of the next 6 years. d. Invest $1,167 at the end of years 1, 3, and 5