HELP PLSSS can someone write this in exponential form!!

Asquare parking lot has 6,400 square meters what is the length in meters

When only separate discreet points are graphed it is called?

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.