Answer:
It's A.
Step-by-step explanation:
Answer:
4 pi
Step-by-step explanation:
diameter = 2r
4 =2r
r =2
area = pi × (r)^2
= pi × 2^2
= 4 pi
Answer:
5
Step-by-step explanation:
5+12= 17
Answer:
Y=x+12
Step-by-step explanation:
Not pretty sure XD but .-.
Answer: You divide the top row by itself and you multiply the top by 2 each time.
Step-by-step explanation: Multiply 72 by 2 each time on top and the bottom row just simply add 1.
Sorry if it is wrong but i hope it helps!