I think you mean,

You can use the usual formula,

That in this case is,

Where I have used,
I am pretty sure that the right answer for the first question which is being asked is the second option - <span><span>b. 3 / 7, 18 / 42
</span>What about the next one, I bet it's </span> d. 60 / 100. 3
And the last one is a. 5/8=15/24
Answer:

Step-by-step explanation:
since on a horizontal line which means y axis and the sllope line is on 2
<span>f(x)=10x+8
</span>
<span>g(x)=1x+4 = x+4
(f+g)(x) = f(x) + g(x) = 10x+8+x+4 = 11x + 12
</span>
<span>(f+g)(3)= 11(3) + 12 = 33 + 12 = 45
hope that helps
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