I need help with finding m & I’m pretty sure exercise 6 is # 6 help please

The system of equations graphed below has how many solutions? y = 2x + 2

When you are making a circle graph by hand, how do you convert a number for a part into its corresponding angle measure in the circle graph? when you are making a circle graph by hand, what should you do if one of your angle measures is greater than 180°?

Acylinder has volume 45π and radius 3. what is it’s height?