15 + 12y is what kind of equivalent expression

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.

Identify this conic section. x2 - y2 = 16 o line circle ellipse parabola hyperbola

Find the rate at which the water is now flowing from the tap give your answer cubic centimetres per second