The answer is -3, because the negative sign is outside of the absolute value. If the problem looked like this |-3|, then the answer would be 3. To clarify, your answer is -3.
The answer is n + 3 over 5 = n - 1 over 2.
Answer:
Which one?
Step-by-step explanation:
![average = \frac{sum \: \: of \: \:all \: \: obeservations}{no. \: \: of \: observaions}](https://tex.z-dn.net/?f=average%20%3D%20%20%5Cfrac%7Bsum%20%5C%3A%20%20%5C%3A%20of%20%5C%3A%20%20%5C%3Aall%20%5C%3A%20%20%5C%3A%20%20obeservations%7D%7Bno.%20%5C%3A%20%20%5C%3A%20of%20%5C%3A%20observaions%7D%20)
![= \frac{1205 + 1450 + 1530 + 1655 + 1610 + 1710}{6}](https://tex.z-dn.net/?f=%20%3D%20%20%5Cfrac%7B1205%20%2B%201450%20%2B%201530%20%2B%201655%20%2B%201610%20%2B%201710%7D%7B6%7D%20)
![= \frac{9160}{6}](https://tex.z-dn.net/?f=%20%3D%20%20%5Cfrac%7B9160%7D%7B6%7D%20)
![= 1526.66](https://tex.z-dn.net/?f=%20%3D%20%201526.66)
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1526.66 is the average of his sales for this period.