Step-by-step explanation:
32 percent
Answer is in a photo. I can only upload it to a file hosting service. link below!
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Answer:

Step-by-step explanation:

I hope I helped you^_^
Answer:
there's kinda alot of numbers there pal
You know the total length ST and SU, so to find x you would write an equation. This would be: x+4+2x=16 Combine like terms: 3x+4=16 Subtract four from both sides: 3x=12 Divide both sides by three: x=4