Rewrite the expression by using grouping symbols. y • 4 + y • z a. y • (4 + y) • z b. y (4 + z) c. 4(y + z) d. z(y • 4)

Sum of the interior angles of a pentagon

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)

Based on the diagrams, what is the value of x?