Match the value of a that makes each statement true

Choose the correct slope of the line that passes through the points (1, -3) and (3, -5)

Over the last 8 nights, elyse earned the following in tips: {105, 120, 84, 95, 100, 132, 140}. if she earns $140 a night for the next four nights, which measure of center would increase more, the mean or median?

The area of a circle is equal to 1 dm². find the radius of the circle.