9x^2 and 5x are not like terms because 9x is being squared and 5x isn't.
You could use graphs like hundreds graphs ;/
Answer:
800
Step-by-step explanation:
8*10*10=
8*10=
80*10=
800cm.
i broke up the problem. hope this helps!
Answer:
29,892
Step-by-step explanation:
811,968-782,076
Answer: 5.5
Step-by-step explanation: