Pls help quickly I don’t understand it !!

Which point on the x-axis lies on the line that passes through point c and is parallel to lino ab?

1. writing an equation for an exponential function by 2. a piece of paper that is 0.6 millimeter thick is folded. write an equation for the thickness t of the paper in millimeters as a function of the number n of folds. the equation is t(n)= 3. enter an equation for the function that includes the points. (-2, 2/5) and (-1,2)

What’s the answer ? use the picture to see the problem