How many two digit numbers have one odd digit and one even digit?

Ineeeeed this is due tomorrow and i dont know the answer can you find all the exponents

Bradley hikes 12 miles in 3 hours. in relation to bradley’s hike, which statement describes the expression

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