Coach Thomas brings his baseball team to get ice cream after each Friday night game. Last week, he purchased 9 cones and 8 cups of ice cream and payed $53.50. This week he purchased 6 cones and 11 cups of ice cream and paid $51.25. Write and solve a system of linear equations to determine the cost of each cone and each cup.

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)