Can you solve this?

A hawk sitting on a tree branch spots a mouse on the ground 15 feet away from the base of the tree. The hawk swoops down towards the mouse at an angle of 30 degrees. What is the distance from the tree branch to the mouse?

This is not homework or an assignment it is part of a practice test that I am choosing to take and I am unsure of how to solve this problem. Can anyone help me? Please!

Thanks!