A bird watcher is looking at a bird on top of a building. She is already watching on top of a (different) 40ft building. She estimates that the angle of elevation of her binoculars is 7', and the buildings are approximately 30 feet apart. The bird watcher is 5.5 feet tall. How high above the ground is the bird? (You can either give your answer symbolically, or round your final answer to the nearest 2 decimals.)