39
12 10 10 10
The numbers are: 12 and -2
-45
15
2 and 8
10+11+12
your penis
45 and 10
It means that you add up all the numbers in a set of numbers, then divide by the size of the set. For example, if you have 10 numbers, you add them all up and divide the result by 10.The average is also known as "arithmetic mean".
Same as average. For example, if you have 5 numbers, add them all up, then divide the result by 5. If you have 10 numbers, you add and divide by 10, etc.
10 and 1490