Answer:
We do not reject the Null Hypothesis
Step-by-step explanation:
From the question we are told that:
Sample size 
Population mean 
Sample mean 
Standard deviation 
Significance level 
Generally the Null and and alternative Hypothesis are as follows


Therefore t critical Value is


Where

Therefore
From t Table

Generally the equation for Z Critical is mathematically given by



Therefore
Since the t test statistics is greater than the Critical value
Hence,we do not reject the Null Hypothesis
C=-2 because you would transfer to the other side making it negative. It can't be a negative so you divide -1 to 2. Making it -2.
2.007
2.714
2.09
2.97
greatest to least : 2.97 , 2.714, 2.09, 2.007
C) -7
Explanation: If you rearrange the equation into slope-intercept form, you get y = x - 7 so -7 is the b value (y intercept)
10x=1
_
2x(x+3)
is the answer ,hope its corect and help