The slope of the line in simplified form is 
Step-by-step explanation:
The slope of a line which contains points
and 
is 
The given is:
1. Point (-12 , -60) lies on the line
2. Point (60 , -42) lies on the line
We need to find the slope of the line
∵
= (-12 , -60)
∵
= (60 , -42)
- Substitute these values in the rule
∴ 
∴ 
∴ 
∴ 
The slope of the line in simplified form is 
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You can learn more about the slope of a line in brainly.com/question/12954015
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You are given a table

The rate of change for the function represented in the table can be calculated using the formula

where i=1,2,3.
1. When i=1,

2. When i=2,

3. When i=3,

Then the rate of change is $1.5
Answer: correct choice is D.

Explanation:
Since we have given that
There are 6 gray keys for every 11 black keys .
So, the ratio will be 6:11
Let the number of gray keys be 6x
Let the number of black keys be 11x
Now, according to question,

so,

The miller needs 1-3/4 kg (or 1.75 kg) for two loaves.
Therefore the amount of flour needed for 1 loaf is
1.75/2 = 0.875 kg per loaf.
For 8 loaves, the amount of flour needed is
8*0.875 = 7 kg
Answer: 7 kg of flour is needed for 8 loaves.
The value of x is equal to one