1. The answer is b.) whom.
2. The answer is b.) sudden.
Answer:
When the Romans left Britain
I think it is 7 because it explains it
Answer:
B
Explanation:
Editing can fix grammar, spelling and other minor details. The other options are revising, which deals with the paper as a whole, considering strengths and weaknesses, arguments, focus and organization, support, and voice, as well as mechanical issues.
Explanation:
Finding the (maximum) respective prime powers would yield the answer. Also we need not ... Is perfectly divisible by 720^n? ... So we can say that for any positive value of n it not divisible.