Answer:
B.RY/RS=RX/RT=XY/TS
Step-by-step explanation:
If Triangles RST and RYX are similar, then the ratio of their corresponding sides is:

Out of the given options, Option B is true.
See the attached picture:
6% = 1200
9% = 2400
12% = 3800
What are you specifially looking for? simplified it would be 10 and as a fraction 10 over 1