Does 4.5, 6, and 7.5 make a right triangle?

The area of a 25-inch tv screen is 300 square inches. the area of a 40-inch tv screen is 768 square inches. the are of the smaller screen is what percent of the area of the larger screen?

Which of these numbers of simulations of an event would be most likely to produce results that are closest to those predicted by probability theory? 15, 20, 5, 10

Nancy walks 5 blocks to the right, 3 blocks down, 7 blocks to the left, and 1 block up. each square's side length is 1 block. what are the coordinates of her new position? starting coordinates are (2, -3) a. (1, 5) b. (0, -5) c. (-3, 0) d. (-6, -3) e. (-4,-4)