Please explain the calculations and concepts behind it

Weldan Carporation's fiscal year ends December 31. The fallowing is a list af transactions imvolving receivables that oceurred during 2024 Varch 17 jccounts recelvable of $1,800 vere witten off as uneollectible. The campang uses the allowanec method. Yareh 30 Loacd an officer ot the coapany $21,000 and received a note recuirine prinoipal and 1 nterest at BI to be paid on raroh 30,2025 . Yay 30 Diecoanted the $21,000 note at s loesl bank, The bank's discount rate is 9 s. The note was dieconted without recaure and the lm critarin ret. yroag mathod to aecaunt for eash disacounta. July B The Blankenahip Company paid ita accoust 1n full. kugust 31 sold stock in a nonpublic compang with a book value of $5,100 and aceepted a $6,200 noninterest-bearine note with a discount rate of 95 . The $6,200 payneat 15 due on Pebruary 2 , 2025, The stook has no ready aarket value. atart of 2024 . Required: 18 2. Prepare joumal entries for each of the above transactions and additional year-end adjusting entries indicated. Note: If no entry is required for a transaction/event, select "No journal entry required" in the first account field. Do not round intermediate calculations and round your final answers to nearest whole dollar