The sales tax for an item was $7.20 and it cost $360 before tax. Find the sales tax rate. Write your answer as a percentage.

Item 8 an account earns simple interest. $700 at 8% for 6 years a. find the interest earned. $ b. find the balance of the account. $

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)

E. which of the following is not a possible probability? a. 25/100 b. 1.25 c. 1 d. 0