Number of days past due

Toot Auto Supply distributes new and used automobile parts to local dealers throughout the Midwest. Toot's credit terms are $\frac{n}{30}.$ As of the end of business on October $31,$ the following accounts receivable were past due:

$\backslash$table$[[$Account$,$Due Date,Amount$],[$Avalanche Auto,August $22,$$$12,000$