You go to your favorite restaurant. The bill for the food is $74.26. The tax on the bill will be 9%.

You go to your favorite restaurant. The bill for the food is $74.26. The tax on the bill will be 9%. You are planning on giving a tip on that total amount (bill and tax together) of 20%. What is your final bill, all taxes and tips included?

Calculate the after tax amount:
After tax amount = Bill * (1 + Tax Rate)

Since 9% = 0.09, we have:
After tax amount = 74.26 * (1 + 0.09)
After tax amount = 74.26 * 1.09
After tax amount = 80.94

Calculate the Tip amount:
Tip amount = After tax amount * tip percent

Since 20% = 0.2, we have:
Tip amount = 80.94 * 0.20
Tip amount = 16.19

Calculate the final bill:
Final Bill = After Tax Amount + Tip Amount
Final Bill = 80.94 + 16.19
Final Bill = 97.13