Express as a unit rate: 5 apples for $3.00
i need to the answer, and i need for how to get this answer. my teacher is terrible at explaining math.

Aline passes through the points (5,4) and (2.1). part a.) what is the slope of the line that passes through these points? show work. part b.) what is the equation of the line that passes through these points. show work. part c.) where does the line intercept on the x& y axis? show work