Seeking help (on attached file,) marking brainliest if correct

Divide the following fractions 3/4 ÷ 2/3 1/2 8/9 9/8 2

!! 10 ! a westbound jet leaves central airport traveling 635 miles per hour. at the same time, an eastbound plane departs at 325 miles per hour. in how many hours will the planes be 1900 miles apart?

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2