The answer for this question is C
For a) the pattern rule goes 12+(12x2)=36 36+(12x4)=84
So the pattern rule is double the number and then times it by twelve to get to the next answer
Add the left side amount for Gross earnings and right side amount for net pay
To calculate the mean of a set of numbers and them all together and divide by the amount of numbers.
Example:
Find the mean of 12, 25, 36.
12 + 25 + 36 = 73
73 / 3 = 24.33
Our mean is 24.33.
