A). (0,2) b) (3,0) c) (0,0) d) (0,3) i will mark you as brainlinest for correct

I'm terrible at math any here is appreciated.

Given right triangle xyz, which correctly describes the locations of the sides in relation to

7. if the value of x varies directly with the value of y, and x = 3 when y = 21. what is the valu y, and x = 3 when y = 21. what is the value of x when y = 105?