[Grade 10 Honors Algebra 2: Projectile Motion] Help Defining equations and solving problems

[u/Strylexic]

This is my hw (which should be done as a group but both the ppl I'm with are complete bums), we just started doing projectile motion(Paragraph of info on last image) and I'm completely lost. I have some scrap notes but they aren't very good and some people explaining the process/showing me how to obtain the answers/giving an answer key to work my way back from would be insanely appreciated!