I need help plz its due in 30 minutes

The depth of a lake at a certain point, wich is a function of the distance of that point from shore, is 30 feet.

Solve 4 ln x=2ln25 a) x=5 b) x=25 c) x=625

Your friend, taylor, missed class today and needs some identifying solutions to systems. explain to taylor how to find the solution(s) of any system using its graph.