Solve for the unknown value in simplest form 2/4/5 = x/3/10

Factor this polynomial completely x^2-64

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.

Find the solution set of this inequality. enter your answer in interval notation using grouping symbols. |8x-4| ≤ 12