I need help with this Plato question, please help!

What is the solution of sqrt x+2-15=-3

Solve for x -2.3(r - 1.2 ) = -9.66 enter you answer as decimal.

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.