Its similar in that you have to use the end points of each line to construct the new line.
Hello,
√2(3√2+√18)=3*2+6=12
Answer A
Its the last one because you plug in the 20(x) for example y=20x
and your table looks like this
x 0/2/4
y 0/40/80 y x
because 20(2)=40 then you would do the same with the rest of the equation
20(4)= 80 there fore the last on is your answer
7/10 is 0.7
0.7 x 16 yields 11.2
11.2 is also 11 1/5
or 56/5