Please help me out please please y'all help please please ASAP please At the bottom there’s another question to this picture I’ll post it know just help with this and then use the picture for the other question I’m gonna post

The owner of the plant nursery where you were tells you to fill 350 ml bottles from a 30 l from a fertilizer

Which geometric principle is used to justify the construction below?

The dance committee of pine bluff middle school earns $72 from a bake sale and will earn $4 for each ticket they sell to the spring fling dance. the dance will cost $400 write an inequality to determine the number, t of tickets the committee could sell to have money left over after they pay for this year's dance. what is the solution set of the inequality?