Math?? anybody somebody please help

100 points worth

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

You went to a restaurant and spent $53.25 on the meal. there was a 6% sales tax. what was the amount of money, not including a tip, you spent at the restaurant?

The curved part of the figure is the semicircle what is the best approximation for the area of this figure