Problem 3: The asset section of the Walker Co. balance sheet for the year ended 12/31/20 is shown below. Walker Company December 31, 2020 Cash $220,000 Accounts Receivable ...70,100 Allowance for Doubtful Accounts (8,000) Office Supplies 3,000 Prepaid Rent 20,400 Office Furniture 70,200 Accum. Depreciation, Furniture... (6,000) The Walker's 12/31/2020 Income Statement shows a "Bad Debt Expense" of $9,000. a. Given the data as shown above, please indicate the amount of Accounts Receivable that Walker expects to actually collect in the year 2021. b. Walker prepares financial statements once a year at 12/31 and therefore, makes adjusting journal entries only once a year. Please indicate the year end adjusting entry that Walker Co. made on 12/31/20, before financial statement preparation, to estimate uncollectible amounts. c. Did Walker Company overestimate, underestimate or estimate perfectly the dollar amount of accounts receivable that were going to be deemed uncollectible in the year 2020? d. Assume that on April 11, 2021, an account in the amount of $4,000 is determined to be uncollectible due to a bankruptcy. You receive a phone call with this news. Make the necessary journal entry to record this event on April 11, 2021