Answer this for 99 points 300 x 200 x 1000^ 30

Can someone me i’m confused. will give brainliest and a whole bunch of points

Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.

What number should be added to the expression x^2+3x+ in order to create a perfect square trinomial? 3/2 3 9/4 9