I have a good record of guessing the right one so I would say #1.
Answer:
199.5
Step-by-step explanation:
i know because I added it up
Answer:
0.525
21/40 as a decimal is 0.525.
I think it would be division :)
Answer:
1 is, 2 is, 3 isn't, 4 isn't
Step-by-step explanation:
Some answers may not add up the same way!