Zach Is Planning to Invest Up to $50,000 in Corporate

Zach is planning to invest up to $50,000 in corporate and municipal bonds. The least he will invest in corporate bonds is $9000 and he does not want to invest more than $27,000 in corporate bonds. He also does not want to
Invest more than $34,307 in municipal bonds. The interest is 8.2% on corporate bonds and 6.2% on municipal
Bonds. This is simple interest for one year. What is the maximum income?

A) $3640
B) $26,640
C) $4788
D) $30,640