There are 4 aces and 4 kings in a standard deck of playing cards. you pick one random card at random. what is the probability of selecting an ace or king?

The chs baseball team was on the field and the batter popped the ball up. the equation b(t)=80t-16•16+3.5 represents the height of the ball above the ground in feet as a function of time in seconds. how long will the catcher have to get in position to catch the ball before it hits the ground? round to the nearest second

There is an entrance to the computer room at point e which lies on ab and is 5 feet from point a. plot point e on the coordinate plane. find the distance from the entrance at point e to the printer at point e

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2