100 points pls help help me

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)

Is it greater than or less than7*3_9*2

What is the 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83