To calculate the tip at a buffet:
\[ T = B \cdot r \]
Where:
A Buffet Tip is a piece of advice or suggestion given to enhance one’s experience when dining at a buffet. This could range from strategies on how to sample a wide variety of dishes, to tips on how to pace oneself to avoid overeating. Buffet tips could also include advice on how to get the best value for money, such as focusing on high-value items or visiting during certain times for discounts.
Let's assume the following values:
Step 1: Calculate the total tip amount:
\[ T = 50 \cdot 0.15 = 7.50 \text{ dollars} \]
So, the total tip amount is $7.50.