help please I'm failing in math and can't understand so if you can explain how you solved it please do ​

Rhombus adef is inscribed into a triangle abc so that they share angle a and the vertex e lies on the side bc . what is the length of the side of the rhombus if ab=c, and ac=b.

David leaves his house to go to school. he walks 200 meters west and 300 meters north. how far is david from his original starting point?

Graph the line y=4/3 x+1 . use the line tool and select two points on the line.