How can i solve this

21,325-9,486

I’m still confused on how to work the percentages

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

In which month was the peak, the largest deposit, made? january june july august