Twice the length of a rectangle is equal to four times its width. the perimeter of the
rectangle is 80 inches. find the dimensions of the rectangle.

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

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.

Will give brainliest b. describe the function over each part of its domain. state whether it is constant, increasing, or decreasing, and state the slope over each part.