What is the answer for each quickly plssssssss and brainliest

1. 50.26548

2. 12.56637

3. 3.14159

4. 201.06193

5. 113.09734

6. 38.48451

7. 63.61725

8. 153.93804

9. 28.27433

10. 19.63495

Step-by-step explanation:

The formula is A = pi r^2

Hope this helps! Please award brainiest if its correct!

Hello, your answer is: 1079, because remember, this equation represents
*800 - (-279)
so, you need to use the method of KCC, or, k=keep, c=change, c=change.
you keep the 800 positive, switch the (-) subtraction sign to a (+) addition sign, and also, make the (-279) a positive 279. so you turn out with:
*800 + 279, which equals = 1079
*youre welcome :)