please help with these questions, thank you in advance

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A New York Yankees purchased a work truck for $21,000 on 1/1. The truck is expected to have a 3 year life and last 100,000 miles with a salvage (residual value of $7.000. The truck was driven 25.000 in year 1. If the New York Yankees use the activity based method to calculate depreciation expense, how much would the depreciation expense be for the first year of use? When the Florida Marlins record the journal entry to estimate for bad debt expense at the time of a sale on account, which account is debited and which account is credited? (Select all answers that apply credit to Accounts Receivable. debit to Allowance for Uncollectible Accounts credit to Accounts Payable debit to Bad Debt Expense debit to Accounts Payable credit to Bad Debt Expense. credit to Allowance for Uncollectible Accounts debit to Accounts Recevable If the following accounts listed below are used in Ford Motor Companies accounting system, which accounts listed are known as "contra accounts? (Select ALL that apply) Sales Allowances Accumulated Depreciation Accounts Receivable Accounts Payable Od Debit Expert Allowance for Uncollectible Detection Expense Notes Payable Sales retum Deferred Revenue Equipment Cost of Goods Sold