Answer: 
Step-by-step explanation:
The line passes through (-1, 0) and (3,2), so the gradient is
.
This means the equation of the line is of the form
for some constant c.
Substituting in the coordinates of the point (-1,0),

Thus, the equation of the line is 
There you go :) hope this helps!
It depends on how many bags you usually buy for them
Why would she be paying for another form of currency is the real question?