Which expression is equivalent to the expression below?

( 3a + 7 ) + 9( 5- a )

a. -6a+52
b. 2a + 52
c. 12a + 52
d. 6a - 52

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)