871 is closer to 870 than 880, so the answer is 870
Answer:
it is your answer..... if it is helpful plzz like and comment
Answer:
lhh
Step-by-step explanation:
We have

so this is indeed a difference of squares. Factorizing would give

making the answer D.
We can further factor the first term here and write

but that's clearly out of the scope of this question.
The answer is 200. you would multiply 1000 by 80% giving you 800. 800 people didnt know the name so that leave 200 people did.