45m+10n-30m
15m+10n
I believe this is right.
Answer:
600
Step-by-step explanation:
The number:

is going to be between the numbers 563 and 564; since 10 squared equals 100 and the decimal point will move to places to the right.
Therefore, the answer is D.
62.25 + 1 - 1 cause that's just 62.25 + 0 which is 62.25
Answer: I got D i'm not sure if that right though..
Step-by-step explanation: