4x + 8 + 3(x - 2) + 3x ,combining liked terms​

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

Ialready asked this but i never got an answer. will give a high rating and perhaps brainliest. choose the linear inequality that describes the graph. the gray area represents the shaded region. y ≤ –4x – 2 y > –4x – 2 y ≥ –4x – 2 y < 4x – 2

Answer for 10 points show work you guys in advanced < 3