Slope formula: trying to make sure I’m doing this right

Find the height of a square pyramid that has the volume of 32 ft.³ and a base lengthof 4 feet

Walking at a constant rate of 8 kilometers per hour, juan can cross a bridge in 6 minutes. what is the length of the bridge in meters?

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.