Please help
thanks in advance

What is the answer to the question 5x+2x

Pentagon abcde is dilated according to the rule do,3(x,y) to create the image pentagon a'b'c'd'e', which is shown on the graph. what are the coordinates of point a of the pre-image? a) (-1, 1)b) (-1, 2)c) (-9, 6)d) (-9, 18)

Which term describes the point where the perpendicular bisectors of the three sides of a triangle intersect?