try c im sorry if im wrong i tried
1/2............................................ I hope this helps
Answer: A. 14
Step-by-step explanation:
If e=9 and c=5 you would replace e+c with those
9+5=14
You would use the distributive property with the negative. So the second x becomes negative, but since the 7 is already negative it becomes positive. Think of it as if you put the two dashes together you can make a plus sign.
The standard error of the mean is the standard deviation which is 6.50
