Leesha has finished pouring 450 cubic feet out of a total of 2,200 cubic feet of concrete. what percent of the job has she completed?

In which direction does the left side of the graph of this function point? a(x) = 3x - x2 + 4x - 2

50 points and will mark brainlest if you were constructing a triangular frame, and you had wood in the length of 4inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood? yes or no? = explain your mathematical thinking:

32a³b² 8ab² simplify the following expression.