Help plz fast and no links

High schoolmathematics 5 points keith is the leading goal scorer for a team in an ice hockey league. last season, he scored 42 goals in 82 games. assuming he scores goals at a constant rate, what is the slope of the line that represents this relationship if the number of games is along the x-axis and the number of goals is along the y-axis?

Polynomial that can be factored as (3x-4)(3x+4)

Prove that quadrilateral is a rhombus.