Answer:
C) 
Step-by-step explanation:

Answer:
here are a few that are equivalent
8:6
28:21
48:36
68:51
Given the dataset

We start by computing the average:

We compute the difference bewteen each element and the average:

We square those differences:

And take the average of those squared differences: we sum them

And we divide by the number of elements:

Finally, we take the square root of this quantity and we have the standard deviation:

Answer: 8m
Step-by-step explanation:
Anything raised to 0 is 1.
8m*1
Multiply 8 by 1.
8m
5/4=x/20 just cross multiply 5x20 and 4 times x
100=4x divide both sided by 4
100/4=x divide
25=x