An Investment Club Invested Part of $13,000 at 4% Annual

Multiple Choice

An investment club invested part of $13,000 at 4% annual interest and the rest at 5%. If the annual income from the investments is $690 and x represents the amount invested at 4%, which expression represents the amount invested at 5%?

A) x + 13,000
B) 690 - x
C) x - 13,000
D) 13,000 - x