What is x in (3x-12)° on question number 7?

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

What is the volume of a cone with a height of 6 cm in the radius of 2 cm

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