How do you solve the equation -7/8k=21

Brainlest answer can you find the area and circumference of a circle given the radius or diameter? if its yes or no explain why

What is the solution to the equation below? 3/x-2+6=square root x-2 +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.