PLEASE ANSWER Which expression is equivalent to -16 -9?
A. -16 + (-9)
B. 16 + 9
C. 16 + (-9)
D. -16 + 9

Witch represents the inverse of the function f(x)=1/4x-12

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.

Write the factored form of this trinomial 9x^2+18x-7