Answer:
a)
June 30, 2018
Dr Notes receivable 46,000
Cr Sales revenue 42,202
Cr Discount on notes receivable 3,798
PV of notes receivable = $46,000 / [1 + (9/12 x 12%)] = $42,202
December 31, 2018
Dr Discount on notes receivable 2,760
Cr Interest revenue 2,760
Interest revenue = $46,000 x 12% x 6/12 = $2,760
March 31, 2019
Dr Cash 46,000
Dr Discount on notes receivable 1,038
Cr Notes payable 46,000
Cr Interest revenue 1,038
b) effective interest rate = 0.96% x 12 = 11.52% annual