Are the two triangles similar? if so, how do you know?

The two triangles are similar :

1) the angle of QRS and VTU is the same

2) if you notice the length of VT and QR, QR is twice as VT. // same goes to the length of SR and UT.

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

i think the correct option is the second option.