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Here are some tips for Restaurant Bills, which aligns with Texas state standards:

Restaurant Bills

To review the basics of sales tax, see here.

Whenever we eat at a sit-down restaurant, we pay sales tax on top of the cost of the food. We also pay a tip for the service we receive at the restaurant. Like sales tax, tip is calculated as a percentage of the cost of the food. You determine how much to tip. Generally, people tip between 10% and 20%.

Example 1:

Find the total costs asked for.
 You buy \$5 worth of food at a restaurant. The sales tax is 6.5% and you wish to tip 10%. What is the bill after tax, how much tip should you leave, and what is the total cost of everything after tip and tax? Bill after tax: Tip owed: Total bill:

 Bill after tax = Cost of the food + Cost of the food × Sales tax percentage = \$5 + (\$5)(6.5%) = \$5 + \$0.33 = \$5.33 Tip owed = Cost of the food × Tip percentage = (\$5)(10%) = \$0.50 Total bill = Bill after tax + Tip owed = \$5.33 + \$0.50 = \$5.83
 The answer is Bill after tax: Tip owed: Total bill:

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