400 passengers go on a coach trip. Each coach takes 50 passengers. Each passenger pays 23£. The table shows the costs for the coach company. Each coach travels 200 miles. Work out the total profit the company makes from this trip

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)