Anyone?? :D please help this has to be turned in soon

Three coins are flipped. what is the probability that there will be at least two tails?

Monica build a remote control toy airplane for science project to test the plane she launched it from the top of a building the plane travel a horizontal distance of 50 feet before landing on the ground a quadratic function which models the height of the plane in feet relative to the ground at a horizontal distance of x feet from the building is shown

32a³b² 8ab² simplify the following expression.