Expand and simplify this equation

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.

Shannon drove for 540 minutes. if she traveled 65 miles per hour, how many total miles did she travel?

Which graph shows the solution set of x^2+4-12x/> 0