Help please I really need it lol

In which figure is de bc ? a. figure 1 b. figure 2 c. figure 3 d. figure 4

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.

3x + 4y = 5 x- 3y = -7 solve by substitution