Identify the transformation that carries the figure onto itself.
a) rotate 90° clockwise about (8, −6) and reflect across the line y = 6
b) rotate 270° clockwise about (8, −6) and reflect across the line x = 8
c) rotate 270° clockwise about (8, −6) and reflect across the line y = 6
d) rotate 360° clockwise about (8, −6) and reflect across the line x = 8

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.