-0.8x-8=0.2x What is x?

Plz heeeeeeelp plz give me the answer

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.

Leslie started last week with $1200 in her checking account. during the week, she wrote the checks below.