Help Please!
Quiz Solving with Square Roots and Quadratic Formula

Can you guys plz answer this question in order and quickly plz i will give 30 points

Use the elimination method to find the solution to the system of equations. 2x - 3y = -9 -x + 3y = 6

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.