Sofia has been saving money to buy a new computer for her birthday sofias mother gave her twice what she had already save now she has $135 using x to represent the money sofia saved before her mothers present write an equation that represents the situation

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.