HEL A person invested $7300 for 1 year, part at 7%, part at 11%, and the remainder at 13%. The total annual income from those investments was $845. The amount of money invested at 13% was $1700 more than the
amounts invested at 7% and 11% combined. Find the amount invested at each rate.

I got z correct which was $4500.

The person invested $ at 7%, $ at 11%, and $ 4500 at 13%,