Six more than the quotient of 4 and a number x

The sales totals at macy's food store have increased exponentially over the months. which of these best shows the sales in the first three months?

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)

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?