Have a picture of the problem?
Answer: A
Step-by-step explanation:
I think it is -14. I inserted 4 as n. I don't know if that's how you do it.
Answer:
k = 0.5
Step-by-step explanation:
The area of a circle is
Лx r²
so you would take 3.14 times 2.2²
3.14 x 4.84
so your answer would be 15.19.