If it's parallel then: y= -1/2x+2.5
The independent variable is the days he spends reading because nothing we have can determine that. However the dependent variable is the total minutes of reading because it relies on the independent variable to figure out. You can't find the total minutes without knowing the days he spends. The equation sould be d times the amount he reads per day =m
The answer is 36 (Don't mind the comment, I forget you could edit the answer)
36 / 4 = 9
36 + 4 = 40
40 / 5 = 8
