Read and write the number in two other forms 314,207

Pls! does anybody know a shortcut for answering these types of questions in the future?

Choose the linear inequality that describes the graph. the gray area represents the shaded region. a: y ≤ –4x – 2 b: y > –4x – 2 c: y ≥ –4x – 2 d: y < 4x – 2

Factor the polynomial expression x6 – x3 – 20