2. Graph the polygon's image after a rotation pf 90° counterclockwise about the origin. PLEASE ANSWER I HAVE 4 MINUTES

In trapezoid efgh, m∠hef=(4x2+16)∘ and m∠gfe=(5x2+12)∘. find the value of x so that efgh is isosceles. i'm desperate.

What is the inverse of the function f(x)=4x+8

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.