A Stain That Cannot Be Removed from the Surfaces of the Teeth

question 9

Multiple Choice

A stain that cannot be removed from the surfaces of the teeth is caused by:

• A) tea, coffee, and colas
• B) tobacco
• C) chlorhexidine mouth rinse
• D) tetracycline antibiotics

---

Definitions:

Firm's Equity

The value of a company's assets minus its liabilities and debt; essentially, it represents the ownership value held by shareholders in the company.

Dividend Payout

The percentage of earnings distributed to shareholders in the form of dividends.

Additional Debt Financing

Raising more funds for a company through borrowing, which may increase the company's debt-to-equity ratio.

Return on Sales

A financial metric that measures the efficiency of a company in generating profits from its revenue, calculated as net income divided by total sales.