Two acquaintances have approached you about investing in business activities in which each is involved. Julie is seeking $560 and Sam needs $620. One year from now your original investment will be returned, along with $50 income from Julie or $53 income from Sam. You can make only one investment.

Required:
a. Which investment would you prefer? Why? Round your percentage answer to two decimal places.
b. What other factors should you consider before making either investment?