tbh idk what im doing either, but i do know what im doing in this problem! so how do we attack this? well i know the formula for area of a rectangle is length x width= area, so we have our area and our length, whats our width?
1w=300, divide both sides by one, w=300, 300 is our width, now we can just make proportions. if 300/1=x/2 we are find our lengths, so when x=2, the length is 150, and when x=3, the length is 100!
:)