One fourth of m minus six is equal to two times the sum
of m and 9.

Answer this question! 30 points and brainliest! only if you know the answer.

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

How to do this , and can some one explain