PLS PLS HELP! IT'S DUE IN FEW MINUTES!!

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

Find the value of x that will make l ll m

Acylinder with a base diameter of x units has a volume of jxcubic units which statements about the cylinder are true? check all that apply. the radius of the cylinder is 2 x units. the radius of the cylinder is 2x units. the area of the cylinder's base is 200 square units. the area of the cylinder's base is a square units. the height of the cylinder is 2x units. the height of the cylinder is 4x units. mark this and return save and exit next submit