Please send help, I'm so lost!!

So I'm doing adjusting entries for the Rockford Practice Set 16th Edition and I'm stuck on one of the entries.

"Interest has accrued at 8% on the long-term notes payable since July 1, 2018. The next six-month interest payment at 9% on the bonds is due on March 1, 2019. The discount on bonds payable has not been amortized for any part of 2018; the bonds are dated March 1, 2012 and mature March 1, 2022."

Balance for the Notes Payable (LT Liability): 1/1 Cr 43000 ... 7/1 CR 70,000, giving a new balance of 113,000

Balance for Discount on Bonds Payable: 1/1 6400

Balance for Bonds Payable: 1/1 Issued March 1, 2012... 275,000

I have no idea what to do for the math portion or even for the entry titles