Find the missing factor.
b23b + 2 = (b - 1)(
)

Find two rational expressions that have the difference of 2-n/n-4

Cora bought a package of erasers. there are 4 pink erasers and 12 blue erasers. what is the ratio of pink erasers to blue erasers?

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