Sorry, I'm not sure.
I would suggest asking a trusted adult or teacher or redoing the lesson. Cheating isn't a good path: you will not do well in the future if you always search for answers on the internet.
The figure will change by factor of 6
Answer:
The answer you chose is correct
Step-by-step explanation:
Answer: i've heard about it but i'm not too much into it
<span>It could be C. If the blade spends twice in a minute, it would be 30 seconds. 30=2pi/B=pi/15. </span>