How do i describe features of a graph that’s linear or nonlinear

If a fair 6 sided cube is rolled 60 times, theoretically how many times should you expect to roll a 4 or a 5?

What is the smallest integer n such that n\sqrt{2} is greater than 20

Its due ! write an equation in which the quadratic expression 2x^2-2x 12 equals 0. show the expression in factored form and explain what your solutions mean for the equation. show your work.