3/8 cannot be simplified anymore, because 3 doesn't go into 8. Therefor 3/8 is the simplest form. Hope this helps!
Answer:
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13. 17y² - 22y
14. 9m²n+7mn²
15. 11y²
16. 8x²y
I'm not 100% sure if these are all correct, so please forgive me if I'm wrong.
Hopefully this helps, and please consider marking branliest.
1.) 19.241-66.6
Subtract
Final Answer: -47.359
2.) 26.125-7.05
Subtract
Final Answer: 19.075