Final answer:
To calculate the total bill including a salad or soup addition, add the cost to the base price, apply the sales tax, and include an approximate tip. For example, adding a $5 item to a $47.50 meal, with 6% tax and an 18% tip, results in a final charge of $65.25.
Step-by-step explanation:
When determining the total bill after adding selections like a salad or a soup onto a dinner/entree, it's essential to consider both the price of the additional items and any applicable taxes. For instance, if the cost of the entree is $47.50 and the restaurant charges a 6% sales tax, the tax amount would be calculated as 0.06 × $47.50, which equals $2.85. Therefore, if Jerod and his friends were to add a salad or soup to their meal, they would need to add this cost to the base price before applying the sales tax.
If we consider a scenario where the additional cost for a salad or a soup is $5, the new subtotal would be $47.50 + $5 = $52.50. The sales tax on this amount would be 0.06 × $52.50 = $3.15. The total bill, with the addition of an approximate 18% tip (a common amount for good service), would be $52.50 + $3.15 + (0.18 × $52.50) = $65.25. This example demonstrates how to calculate the final charges, including sales tax and tips, when ordering at a restaurant or dining establishment.