Can anyone help me to solve with regression and like how should we approach such types with the help of desmos

Can anyone help me with this out !!!!!!

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Guys! my maths is sorted i get 700+ but im stuck at 400 in english please help. Tell what should i do

Last day of November. Also let me know if anyone has an idea for how I could make these competitive. I used to have a thing where everyone who got the answer right would get a point, but now doing that would be hard since there's so many people who will all get the answers right. Maybe it could be something where the FIRST person to get it right gets something, idk.