1) I'm not sure what an open operation is.
2) D
3) No
4) Yes
5) D
6) hmm
7) there doesn't seem to be a 6 or 7
8) C
Answer:
b
Step-by-step explanation:
Luis is finding 5 because 9 minus 6 is 3. 3 plus 2 equal 5 easy
Answer:
Step-by-step explanation:
產品 1 14 20 13
產品 2 15 11 18
產品 3 12 15 16