2.) If the aspect ratio in width to height (width: height) of a chalkboard is 16:9 and
the width is 70 inches, what is the height of the chalkboard?

Sorry guys but as you have a small brain

Aline passes through (1,-5) and(-3,7) write an equation for the line in point slope form rewrite the equation in slope intercept form

Two airplanes start at the same place and travel in opposite directions,one at 395 miles per hour and the other at 422 miles per hour. how many hours will it take for the planes to be 2451 miles apart?