Please help me I actually don’t know the answer

What kinds of numbers have an odd number of factors?

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

Laura read 1/8 of a comic book in 2 days. she reads the same number of pages every day. what part of the book does she read in a week