ive already answerd the understand questions of part A i really just need a walk through so i can get a good grade thanks so much!!

The random variable x represents the number of phone calls an author receives in a day, and it has a poisson distribution with a mean of 8.7 calls. what are the possible values of x

Table which ratio is equivalent to 3: 7? 6: 7 3: 21 24: 56 15: 30

Lola says these two expressions have the same value. expression a expression b which explains whether lola is correct?