Answer:
I can help you just post another thing because there is no picture.
Step-by-step explanation:
Answer:
7 units
Step-by-step explanation:
A=pi*r^2
153.86=3.14*r^2
153.86/3.14=r^2
49=r^2
r=7
Answer:
the first on 5×107=535 the second one 3×105=315