First, you would find the mean of the data. Once you have the number, you would find the difference between the mean and the other numbers. Once you have all of those numbers, you find the mean of that set. For example:
The mean of this set is 9. We then use this number to find the difference between all of the numbers. So 14-9= 5, 9-7=2, 9-6=3, 9-5=4, 13-9=4. Finding the mean of 5, 2, 3, 4, and 4 results in 18/5 or 3.6
3.6 is the mean absolute deviation.
If Mel drove 432 miles and drove an average of 72 miles per hour, the Trip would have taken 6 hours answer B
Standard form (as in Ax + By = C) after you have distributed the negative "-" to x+7, you can keep one side for variables and another for constants (C). So you would subtract x from both sides then finally, add 2 to both sides.
(1, 17) therefore that is the answer for the top branch
Divide 32 by 4 so you have 20% of them as 8, because 20 can be multiplied to get 100, then multiply by 5 and you see that the amount of games is 40