What is the productof the 6th square number and 3rd square numbe​

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)

Could answer every question with steps

Simplify (1/2)4th power a. (1/16) b.(1/8) c.(1/4)