Answer: D. 6 and 4
Explanation:
2643 - 180 = 2463 the 6 changes to a 4, and the 4 changes to a 6.
|= absolute value and so |-25| is 25
Answer:

Step-by-step explanation:
In the attachment!
Not sure but I think it is 3. If you get it wrong I am so sorry.