consider the dilation.
pre-image: a(−1, 3)a(−1, 3) , b(2, 1)b(2, 1) , and c(4, −3)c(4, −3)
image: a′(−2, 6)a′(−2, 6) , b′(4, 2)b′(4, 2) , and c′(8, −6)c′(8, −6)
is the dilation an expansion or contraction? what is the scale factor?

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

0.6, 3/5, and 6% are the 3 same portion.

but, when they're all changed to a decimal they would equal to 0.6.

hope this , good luck!