Properties to find the sum or product 93+(68+7)

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1

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?

Im literally having a mental breakdown