Need help asap , please ❤️❤️❤️

Which of the following transformations does not preserve congruence? * 5 points a. (x, y) → (y − 3, x − 3) b. (x, y) → (x + 5, y − 1) c. (x, y) → (y + 9, −x + 2) d. (x, y) → (3x + 1, 3y − 2)

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9

Measure of angles 31 (x+4) (3x+9) me