Help on a couple basic Trig Questions

Hello, I'm new here so advanced apologies if I'm posting improperly. I am in need of some assistance on these two problems. It's been a while since I've done trig and although I know the basics I can't get the answers. Any help is appreciated...

Two fire towers are 575m apart. The first tower is 14m high, the second is 30m high. What is the angle of depression from the top of the second tower to the top of the first tower?

Richie observes the angle of elevation of an ultra-light plane to be 52°. At the same instant, the angle of elevation for Wesson is 36°. Richie and Wesson are 325m apart on level ground. How far is each person from the ultra-light plane?

Much Obliged. (Bow)