Two bicycles depart from miami beach going in opposite directions. the first bicycle is traveling at 10 miles per hour. the second bicycle travels at 5 miles per hour. how long does it take until the bikes are 45 miles apart?

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)