A toy rocket is launched from a 5.6m high platform in such a way that its height, h (in meters), after t seconds is given by the equation h=-4.9t^2+38.5t+5.6. how long will it take for the rocket to hit the ground?

50 people men and women were asked if they watched at least one sport on tv. 20 of the people surveyed are women, but only 9 of them watch at least one sport on tv. 16 of the men watch at least one sport on tv. make a a two-way table and a relative frequency table to represent the data.