During its first year of operations, Mack's Plumbing Supply Co. had sales of $220,000, wrote off $3,000 of accounts as uncollectible using thedirect write-off method, and reported net income of $24,200.

Assume that during the second year of operations Mack's Plumbing Supply Co. had sales of $264,000, wrote off $3,600 of accounts as uncollectible using the direct write-off method, and reported net income of $26,400.

a. Determine what net income would have been in the second year if theallowance method(using 1-3/4% of sales) had been used in both the first and second years. $_______

b. Determine what the balance of theallowance for doubtful accountswould have been at the end of the second year if the allowance method had been used in both the first and second years. If required, use the minus sign to indicate a "debit" balance. $_______