Answer: b
Step-by-step explanation:
add them then divide
Answer:
1/4 - 3 2/5 - (2 1/3 - 1/4) =
-157/30=
-5 7/30
≅ -5.2333333
A=π r²=π×9²≈254.469km²
r radius is 9km
I hope it helped!!!