Answer:
December 15, 2015, bank loan is received
Dr Cash 120,000
Cr Notes payable 120,000
December 31, 2015, adjusting entry for accrued interests payable ($120,000 x 9% x 15/360)
Dr Interest expense 450
Cr interest payable 450
January 30,2016, loan is paid back to the back along with interests
Dr Interest expense 900
Dr Notes payable 120,000
Dr Interest payable 450
Cr Cash 121,350