I think the answer is choice D, but don't trust me I didn't do the math.
The standard deviation is 1.43 below the mean
<h3>How to determine the number of standard deviation?</h3>
The given parameters are:
Mean = 98.249
Standard deviation = 0.733
x = 97.2
To calculate the number of standard deviation below the mean, we use

So, we have:

Evaluate the like terms

Divide both sides by -0.733
n =1.43
Hence, the standard deviation is 1.43 below the mean
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Answer:
404.5 dollars
Step-by-step explanation:
8x9+(0.875x380)=404.5
(9,-4) you have to plugin 9 to the equation in the form of x. Then you add 5 and that would be your y value
M=c•p
multiplying the prince by the number of cars washed will give you the total amount of money the school has raised