please please will give brainliest

What could explain what happened when the time was equal to 120 minutes

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2

Let u = {q, r, s, t, u, v, w, x, y, z} a = {q, s, u, w, y} b = {q, s, y, z} c = {v, w, x, y, z}. list the elements in the set.a ∩ (b ∪ c)a) {q, s, w, y}b) {q, y, z}c) {q, s, u, w, y, z}d) {q, r, w, y, z}