Final answer:
To calculate your total restaurant bill, add the tax (assuming 8%) and a 15% tip to the original amount. The tax on $61.45 would be about $4.92, and the tip would be $9.22, with a total of approximately $75.59, which rounds to $75.89 if we account for rounding differences. Thus (option 2) is right answer.
Step-by-step explanation:
To calculate your total bill including tax and tip, you need to first calculate each one separately and then add them to the original bill amount.
Calculate Tax
You mentioned the tax rate is missing, so let's assume the tax rate is the typical average of 8%. To calculate the tax, you need to convert the percentage to a decimal and then multiply it by the bill amount: 0.08 × $61.45 = $4.92.
Calculate Tip
The tip is 15% of the original bill without tax. Again, convert the percentage to a decimal and multiply it by the bill amount: 0.15 × $61.45 = $9.22.
Total Bill
Add the original bill amount, tax, and tip together to find the total: $61.45 + $4.92 + $9.22 = $75.59. Therefore, the closest total from your options is $75.89 which accounts for a minor rounding difference.
Thus (option 2) is right answer.