Solution :
Let :
X = number of overtime hours
S = total weekly salary
S = 
S = 480 + 18X
E(S) = 

= 750
Mean of S = 750
Var (S) = 
Var(S) = 
= 5184
Variance of S = 5184
The standard deviation equals square root of 5184 = 72
Step-by-step explanation:
5000 x 3 + 3.5% of 5000 x 3 = the answer
I think you need to pit in a graph or draw one yourself, eat mile lable that you ran 100 miles and keep going
Any answer less than one would work, soothe answers are A and D