Solve 3x= 6x by rewriting the equation. Show your reasoning.

Answer this question! 30 points and brainliest! only if you know the answer.

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