X-2y = 15
6x+3y-42=0
3X-Y+z=15

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?

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?

Once george got to know adam, they found that they really liked each other. this is an example of what factor in friendship