umm ,this is too long could you maybe putt it in smaller form so I can answer
Answer:
m= -12
Step-by-step explanation:
-15m-30=-12m+6
-3m=36
m=-12
Answer: 
![yy = 0.40 (20 - 14) + 14[tex] yy = 2.4 + 14](https://tex.z-dn.net/?f=%20yy%20%3D%200.40%20%2820%20-%2014%29%20%2B%2014%3C%2Fp%3E%3Cp%3E%5Btex%5D%20yy%20%3D%202.4%20%2B%2014%20)

Thus, 16.4 pound class belongs to the 40th percentile of the weight class.
Answer:
The value of the intercept is a=216.
Step-by-step explanation:
We define "s" as the number of scarecrows and "C" the number of crops eaten.
The farmer finds the linear regression equation:

We have a linear function, for which we only know the slope (m=0.8) and a point within it (when s=20, C=200).
We can find a replacing the variables C asn s with the known point (20, 200):

The value of the intercept is a=216.