Final answer:
The fine for not displaying the sign near the register concerning tobacco sales can vary depending on the jurisdiction. In California, the fine can be up to $200 for the first violation and up to $500 for subsequent violations.
Step-by-step explanation:
In most jurisdictions, the fine for not displaying the sign near the register concerning tobacco sales can vary. However, let's consider the example of California. The California Health and Safety Code section 22950.5 requires retailers to display a sign stating that selling tobacco products to anyone under 21 is illegal. Failure to display this sign can result in a fine of up to $200 for the first violation, and up to $500 for subsequent violations.