Assuming Ryan has to pay the $3000 bond every 6 months, he would need to pay $2820.
Here is my reasoning:
6% of $3000 is $180.
Since the 6% off is a coupon, that would mean Ryan would get $180 off his $3000 bond.
Which means Ryan should have to pay $2820. ($3000 - $180 coupon).
I hope this is what you mean! If not, let me know and I will fix my answer! Have a great night Shalla9gomez! :)