In fashion, clothing can quickly go out of style once it has left the runway. If an outfit (a pair of sweatpants) that costs $1250 loses its value by nearly 21% each month, solve for the number of months that it takes for the sweatpants to only cost $25. Round to the nearest month.

In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.