Answer:
stratified sample
Step-by-step explanation:
Well I'm just doing some random math so it might be 300?
Hello there!
Answer: ⇒ C. -30
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Step-by-step explanation:
First you had to remove parenthesis.

Then you multiply by the number.

Apply absolute value.


Again apply absolute value.


Simplify it's should be the correct answer.

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Hope this helps!
Thank you for posting your question at here on brainly.
Have a great day!
-Charlie
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Answer:
56
Step-by-step explanation:
hi I am from India nice to meet you bro