Sara, kim, and john own a painting company. to paint a particular home, sara estimates it would take her 4 days. kim estimates 5.5 days. john estimates 6 days. how long would it take them to work together to paint the house.

Logan wants to know how many skateboards have defective parts. he inspects 20,000 skateboards and keeps track of the number of defects per board. use his probability distribution table to find the expected value for defects on a skateboard.

How do i find the missing angle measure in a polygon

24m^2n+30mn^2+18mn, a sweet challenge!