Remember to show work

Fredrick designed an experiment in which he spun a spinner 20 times and recorded the results of each spin

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.

For the right triangle shown, the lengths of two sides are given. find the third side. leave your answer in simplified, radical form.