Someone good at math if you could help me it could be appreciated, I have two questions left and it's been stressing me.

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

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

We have 339 ounces of jam to be divided up equally for 12 people how muny ounces will each person get