16% of a certain countries voters think that it’s too easy to vote in your country randomly select 12 likely voters find the probability that the number of likely voters would think that it is too easy to vote is a exactly 3, b at least 4 ,c less than eight

Can someone answer this question? : )

The graph represents f(x)=[x]+3. what is f(-2.2)?

This size running track is usually called a 400 meter track. however if a person ran as close to the inside as possible on the track they would run less than 400 meters in one lap. how far away from the inside border would someone have to run to make one lap equal exactly 400 meters