The following are a series of unrelated situations. Answer the questions relating to each of the five independent situations as requested. 1. Martinez Company's unadjusted trial balance at December 31, 2020, included the following accounts. Debit Credit Accounts receivable $55,000 Allowance for doubtful accounts 6.980 Net sales $1,217,400 Martinez Company estimates uncollectible accounts will be 8% of gross accounts receivable. Determine its bad debt expense for 2020. Bad debt expense for 2020 $ 2. An analysis and aging of Sandhill Corp. accounts receivable at December 31, 2020, disclosed the following Amounts estimated to be uncollectible $183,000 Accounts receivable