It's another way of writing nine times nine times nine, or 9x9x9.
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The mean (or average) of 8, 9, and 10 is 9.
The mean is 9.
12+5+9+10=36/4=9 9 is the Mean of 12, 5, 9, and 10 To find the mean of something, add all the figures and then divide by the number of figures.
The mean of 8, 9, 11, and 16 is 8+9+11+16 = 44 and 44/4 = 11 which is the mean average
mean: 9+7+8+7+9=40, 40 divied by the amount of numbers there are so 5, 40 divided by 5= 8. 8 is the mean