At a new year's eve party, each person in the room kissed every other person in the room once. if by the end of the night there's been 190 kisses how many people were in the room?

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

You have a 32-foot fence around a square garden. there are 4 equal sections. you paint 13 of one section of the fence. what fraction of the fence did you paint? you have a 32-foot fence around a square garden. there are 4 equal sections. you paint 13 of one section of the fence. what fraction of the fence did you paint?

Solve each quadratic equation by factoring and using the zero product property. x^2 - 8x + 30 = 3x