Answer:
It is permutation without repetition. I just took the quiz. This is a permutation because different orderings of the pieces produce different pictures. Repetition is not allowed because there are a limited number of puzzle pieces.
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
35+55+a=180
90+x=180
-90. -90
A= 90
Step-by-step explanation: you divide the ft. all together and then add.
