A square with area 144 has the same perimeter as a rectangle with width 3. What is the length of the rectangle? ASAP! Please help! Show all work pls! Thx!

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)

If there is 20 dogs in the shelter and 5 dogs get homes, and then 43 more dogs come. how many dogs are there in the shelter?

Is there a direction u in which the rate of change of f(x,y)equals=x squared minus 3 xy plus 4 y squaredx2−3xy+4y2 at p(1,2) equals 14? give reasons for your answer. choose the correct answer below. a. no. the given rate of change is smaller than the minimum rate of change. b. no. the given rate of change is larger than the maximum rate of change. c. yes. the given rate of change is larger than the minimum rate of change and smaller than the maximum rate of change.