You can make a proportion of 8/20 to 42/x and then simply cross multiply from there to solve for y
Answer:

Step-by-step explanation:

Combine 

Combine the bottom, too.

Apply the fraction rule

Cancel

Therefore, 
Answer: 12
Explain: Hope this helps!
Answer:
D
Step-by-step explanation:
It is because you can see the line pass through the value 0 in x-axis while 6 in y-axis which gives the first coordinate (x,y) = (0,6) and the line also past through the value of 5 in x-axis and 1 in y-axis which gives the second coordinate is (1,5).
So it is true that the line did go through at points (0,6) and (1,5).
Which problem do you want solved ?