Suppose you want to buy a pair of shoes that have a retail price of $80. You have a coupon for $15 off your entire purchase. Also, as a rewards card holder for the shoe store, you are entitled to 20% off your entire purchase. To find the final cost of the shoes, the $15 coupon can be applied first and then the 20% discount, or the 20% discount can be applied first and then the $15 coupon. Which combination of discounts gives you the better deal?

How can the process of applying the discounts one at a time be reflected in a single expression to represent the correct order?

Determine if the following statement is true or false. the normal curve is symmetric about its​ mean, mu. choose the best answer below. a. the statement is false. the normal curve is not symmetric about its​ mean, because the mean is the balancing point of the graph of the distribution. the median is the point where​ 50% of the area under the distribution is to the left and​ 50% to the right.​ therefore, the normal curve could only be symmetric about its​ median, not about its mean. b. the statement is true. the normal curve is a symmetric distribution with one​ peak, which means the​ mean, median, and mode are all equal.​ therefore, the normal curve is symmetric about the​ mean, mu. c. the statement is false. the mean is the balancing point for the graph of a​ distribution, and​ therefore, it is impossible for any distribution to be symmetric about the mean. d. the statement is true. the mean is the balancing point for the graph of a​ distribution, and​ therefore, all distributions are symmetric about the mean.