A movie is projected onto a screen that is 20 feet tall and touches the ground. If the projector sits on the ground and is 40 feet from
the base of the screen, the angle of projection, with relation to the ground, is
degrees. (Round to the nearest tenth.)

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.