Answer:
Yes
Step-by-step explanation:
According to google the anser is yes.
Answer:
https://www.khanacademy.org/
Step-by-step explanation:
I am not entirely sure what you mean however if you sign up for this website and go to whichever grade level you need you can practice all you want
Answer:
A
Step-by-step explanation:
He needs to collect at least 120 so if c is what he must still collect
64 +c must be greater than or equal to 120
Answer:
x=5x66=300
Step-by-step explanation:
Answer:
it's -4 i don't know what you mean by regrouping, sorry
Step-by-step explanation: