Part I During 2020, Silver Electronics recorded credit sales of $640,000. Based on prior experience, it estimates a 3.5 percent bad debt rate on credit sales. Required: a. Prepare journal entries for each of the following transactions, i. The appropriate bad debt expense adjustment was recorded for the year 2020. (2 marks) ii. On December 31, 2020, an account receivable for $1,800 from a prior year was determined to be uncollectible and was written off. (2 marks) b. Complete the following tabulation, indicating the amount and effect (+ for increase, - for decrease, and NE for no effect) of each transaction. Net Sales Gross Profit Income from Operations Transaction a. b. (6 marks)