Below you can find the full step by step solution for you problem. We hope it will be very helpful for you and it will help you to understand the solving process.

Tip on 3.8798375983755E+21 dollars in restaurants:

- for 10% tip

- for 15% tip

- for 20% tip

Tip on 3.8798375983755E+21 dollars for taxi driver:

- tip a taxi driver 10% of your taxi fare, it is

Tip on 3.8798375983755E+21 dollars in barber shops and beauty salons:

- at least 10% of the bill, so it is at least

- for 15% tip

- for 25% tip

- for 30% tip

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