Factorise 125 x cube + 27 y cube + 8 Z cube minus 90 xyz

Me! 50 points! why does when we come home, our door is unlocked and there is grease on the door knob, me solve this , and i don't know what category this goes under

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

Adriveway is 40 yards long about how many meters long is it