If he used the rule (x + 4, y + 7) then pre-image (4, 5) would result in image (4 + 4, 5 + 7) = (8, 12).
He should have used the rule (x - 4, y - 7)
Answer:
42%
Step-by-step explanation:
You have essentially A fraction, 21/50, which gives you a decimal of 0.4 the 2, or 42%