Select all the side lengths that will make a triangle: 3,4,8

7,6,12

5,11,13

4,6,12

4,6,10

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

Which of the following is most likely the next step in the series? a3z, b6y, c9x, d12w, е15v, f18u

Having a hard time understanding this question (see attachment).