Plsss helllp

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

How many zeros does the function f(x)=4x3-x2+1 have

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles