Imagine if your friend is 3ft, and he is scaled down into the drawing. If he's scaled down into the drawing, he would be 1 inch in the drawing. If your cat were 1.5ft, it would be half of your friend, so in the drawing it would be 0.5 inch. Now the table is 9ft, how many 3ft is in 9ft? That's 3 times of 3ft, so 1 inch would be multiplied 3 times, = 3 inches. Or there's a shortcut way in the pic.
Triangle ABC is shown with four images that are each the result of a transformation of triangle ABC. Triangle MNO is reflected over the x-axis and then translated up 4 and right 3. Translate the pre-image down 4 and right 3 and then reflect the figure over the x-axis