Write an inequality that represents each sentence.
1. rachel's hair is at least as long as julia's.
2. the wind speeds of tropical storms are at least 40 mi/h, but less than 74mi/h.

What is the equation of this graphed line? enter your answer in slope-intercept form in the box.

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.

An object in geometry with no width, length or height is a(n):