Answer:
<em>would be the mean.</em>
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Step-by-step explanation:
<em>The mean is when you add up the numbers and then divide it by how many numbers there are. </em>
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Answer:
b≈10cm
or
24cm
Step-by-step explanation:
no these lines are perpendicular
Answer:The answer is B) -3+(n-1)(-7);-171
Step-by-step explanation: