The Division Property of Equality says that for every real number a, b, and c, if a = b
and c≠0, then a/c=b/c. Why does the property
state that c≠0?

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

Offering 30 if a plus b plus c equals 68 and ab plus bc plus ca equals 1121, where a, b, and c are all prime numbers, find the value of abc. the answer is 1978 but i need an explanation on how to get that.

What’s the answer ? use the picture to see the problem