I think it might be a sphere sorry if I got it wrong
The rotation is were you keep one point at the same spot and move the others
So the probability is the number of favorable outcomes divided by the number of total outcomes. This means that the favorable outcomes are 7/9, and the unfavorable outcomes are 2/9. The odds against the event are the unfavorable outcomes. Therefore the odds against the event is 2/9, or 0.2 repeating. Hope this helps. Feel free to ask more questions, and feel free to ask questions about my explanation.
Answer:
he can buy 2
Step-by-step explanation:
Assuming you are referring to simple interest not compound that that it is annual you would gain $100 putting you at $600