Question 561721
I=p*r*t

Irma invests $2600 (p) in a corporate bond paying 8.4% (r) interest per year.
I=2600*.084*1
I=218.4
I'm using 1 for time since it says annual interest later.

So far her interest is $218.40. She needs 339 so that's $120.60 interest from her other investment
120.60=1800*r*1
.067=r
So she needs a rate of 6.7%