Soon-House sells a $1.980 snow thrower on the installment plan. The installment agreement includes a 20% down payment What is the total cost of the snow thrower on the installment plan? show work please

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)