Answer:

Step-by-step explanation:
We have two coordinate points and are asked to find a slope.
When finding slope, we can use the formula listed :

To understand what the variables are, you can take this :


Substitute the points :


Now substitute it into the formula :



60$. These are my equations :
600 * 0.2 = 120 ; 600 - 120 = 480
Then...
600 * 0.1 = 60 ; 600 - 60 = 540
Which then became....
540 - 480 = 60
the answer is c i used a algebra calculator
2/5ths divides by 3 and 1/10 is 0.129
Mr Green- Brown tie
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Mr. Brown- Black tie
I'm working on 6
Hope this helps in the meantime :)