Let
. Then

lies in the second quadrant, so

So we have

and the fourth roots of
are

where
. In particular, they are




Answer:
depends on what the price of the bicycle is and the discount percentage
It is a parallelogram!
Also you haven't really put any other info...
Suppose that the value of other ratio is equal to 6/3 then,
20/3x-8 = 6/3
18x-48 = 60
18x = 60+48
18x = 108
x = 6