A $\$ 86,000$ Trust Is to Be Invested in Bonds Paying $8 \%$

Multiple Choice

A $\$ 86,000$ trust is to be invested in bonds paying $8 \%$ , CDs paying $7 \%$ , and mortgages paying $9 \%$ . The bond and CD investment together must equal the mortgage investment. To earn a $\$ 7180$ annual income from the investments, how much should the bank invest in bonds?

A) $\$ 43,000$
B) $\$ 30,000$
C) $\$ 13,000$
D) $\$ 28,000$