THANKS FOR EVERYBODY HELPING ME I WILL GIVE FREE ROBUX

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

15 and 14.7 are 1 apart, so 15 – 14.7 must be 1.

Find the rate of change for the situation.you run 7 miles in one hour and 21 miles in three hours.