Solve the equation by finding square roots. to start, remember to isolate x^2. equation= x^2-9=0

Which is the completely factored from of xy^3-x^3y

Which equation represents a line that is parallel to the line whose equation is 3x-2y=7( show all work)

Out of $20$ creepy-crawly creatures in a room, $80\%$ are flies and $20\%$ are spiders. if $s\%$ of the total legs belong to spiders, what is $s$?