What line is the line of reflection used to reflect triangle MNP and to its image, triangle M’N’P’?

Just tell me how to set up the equation.

1) you deposit $2,500 in an account that earns 4% simple interest. how much do you earn in eight years?

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.