The lightest chemical element is:

sugar
oxygen
hydrogen

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 region represents the solution to the given system of inequalities? |-0.5x+y23 | 1.5x+ys-1 5 4 -3 -2 -1 1 2 3 4

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?