C and D are your correct answers.
I hope this helps
Answer:
<em><u>see</u></em><em><u> </u></em><em><u>below</u></em><em><u>:</u></em><em><u>-</u></em>
Step-by-step explanation:

- Convert the mixed fractions into improper fractions.








Answer:
<em>sed</em>
Step-by-step explanation:
Hope this helps!!!
The area of the shaded portion = 100.48 cm²
Solution:
Radius of the inner circle = 2 cm
Radius of the outer circle = 6 cm
Area of the inner circle = 

Area of the inner circle = 12.56 cm²
Area of the outer circle = 

Area of the outer circle = 113.04 cm²
Area of the shaded portion = Area of the outer circle – Area of the inner circle
= 113.04 cm² – 12.56 cm²
= 100.48 cm²
Hence the area of the shaded portion = 100.48 cm²