Aflati valorile rapoartelor numerelor: 125 si 25,13 si 169

Ineed if you could explain and give me the answer you! this needs done

The parabola x= √y-9 opens: a.)up b.)down c.)right d.)left

For which of the following counts would a binomial probability model not be reasonable? a)the number of people in a classroom born in januaryb) the number of people in a classroom with red hair c) the number of people admitted to a hospital in a day with a particular disease d) the number of heart beats in a one-minute perio.