Divide the following problems: 2/3 divided by 1/5, 5/9 divided by 10/11, 7/2 divided by 3/4, and 4 1/3 divided by 3/2. Show your work. (Try to get back to me as soon as you can, thanks!)

From the top of a tree a bird looks down on a field mouse at an angle of depression of 50°. if the field mouse is 40 meters from the base of the tree, find the vertical distance from the ground to the bird's eyes.