true or false please help

5. Under the allowance method of accounting for uncollectible accounts receivable, no attempt is made to estimate bad debts expense. 6. Closing entries are required at the end of each accounting period to close all ledger accounts. 7. An expense account is normally closed by debiting Income Summary and crediting the expense account. 8. Companies can report credit card expense as a discount deducted from sales or as a selling expense. 9. The cost of an inventory item includes its invoice cost minus any discount, and plus any added or incidental costs necessary to put it in a place and condition for sale. 10. In a period of rising purchase costs, FIFO usually gives a lower taxable income and