In a class 22 of students, 14 have a brother and 9 have a sister. there are 2 students who do not have any siblings. what is the probability that a student chosen randomly from the class has a sibling?

In each bouquet of flowers, there are 2 roses and 3 white carnations. complete the table to find how many roses and carnations there are in 2 bouquets of flowers.

What is the vertex form of f(x) = x2 + 6x + 3

Ascientist has discovered an organism that produces five offspring exactly one hour after its own birth, and then goes on to live for one week without producing any additional offspring. each replicated organism also replicates at the same rate. at hour one, there is one organism. at hour two, there are five more organisms. how many total organisms are there at hour seven? 2,801 19,531 19,607 97.655