Problem $6,$ Part A

The following are a series of unrelated situations.

A$.$ Halen Company's unadjusted trial balance at $12/31\frac{?}{25},$ included the following accounts.

$\backslash$table$[[,$DEBIT,CREDIT$],[$Accounts receivable,$$55,000,],[$Allowance for doubtful accounts,$$4,200,],[$Net Sales,,$$1,200,000$