The answer must be A. For an explanation, please have a look at the picture.
Answer:
y = -4x - 1
Step-by-step explanation:
x - 4y = 24
-4y = -x + 24
y = 1/4x - 6
m⊥ = -4
y = -4x + b
7 = -4 ( -2 ) + b
7 = 8 + b
b = -1
y = -4x - 1
Answer: 3.48
Explanation: It’ll increase by 0.12 every year!
Answer:

Step-by-step explanation:
The expression for the salt in the barrel is:

The quantity of salt in the barrel after 3 minutes is:
![Q(3\,min) = 6\cdot [1-e^{-0.02\cdot (3\,min)}]](https://tex.z-dn.net/?f=Q%283%5C%2Cmin%29%20%3D%206%5Ccdot%20%5B1-e%5E%7B-0.02%5Ccdot%20%283%5C%2Cmin%29%7D%5D)

Well first you multiply 15 and 8 which is 120 minutes. Now divide 9000 by 120 and you get 75
Answer: 75 days
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