What is the arithmetic mean of the following numbers? 8,10,10,10,6,7,8

Step-by-step explanation:

To find the arithmetical mean, add all the numbers togther and divide by the number of numbers.

The sum of all the numbers is ... 59.

There are 7 numbers.

59/7 which is about 8.43 is the arithmetic mean.

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the answer is y < -3 or   y > 3

-3y > 7 + 2

-3 y > 9

y < -3