A farmer brought 15 watermelons to a picnic. Each watermelon was cut into 6 slices. If each person ate only one slice, how many people had watermelon?​

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

Li buys supplies so he can make and sell key chains. he begins to make a profit only after he sells 4 key chains. what point on the graph makes the most sense in this situation?

Solve the formula ax+ by = c for x.