Answer:
3925 units²
Step-by-step explanation:
area of larger circle = πr² = (3.14)(250²) = 196,250
area of smaller circle = πr² = (3.14)(200²) = 125,600
area of full donut = 196,250 - 125,600 = 70,650
20/360 = 1/18 of full donut
1/18(70,650) = 3925 units²
11+3z
You would combine the like terms, 9+4-2 is 11 and 6z-3z=3z
-8, 0, and -12
Using -7 would get you 8. Using -5 would get you 4
