Which of the following transformations does NOT preserve congruence? A.
(x, y) → (y + 9, −x + 2)

B.
(x, y) → (3x + 1, 3y − 2)

C.
(x, y) → (y − 3, x − 3)

D.
(x, y) → (x + 5, y − 1)

Me! 50 points! why does when we come home, our door is unlocked and there is grease on the door knob, me solve this , and i don't know what category this goes under

Question 1 of 10 2 points different groups of 50 graduates of an engineering school were asked the starting annual salary for their first engineering job after graduation, and the sampling variability was low. if the average salary of one of the groups was $65,000, which of these is least likely to be the average salary of another of the groups? o a. $64,000 o b. $65,000 o c. $67,000 o d. $54,000

Zack and tia played chess for 50 min they put the chessboard away at 11: 20 when did they start