Answer:
How to Find the Mean. The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.
12.3456790123
Step-by-step explanation:
its hard to explain but you could always use a clculator and no I did not use one. But these are hard I'm a math major
15 hours
so, 8 x y = 120
15
try searching the answer up online!
