Answer:
Step-by-step explanation:
c
It is C: Given, Reflexive Property
3+(-5)x=19
Subtract 3 from both sides of the equation.
-5x= 16
Divide by -5 on both sides
X= -3.2
J)x^2 +2x +yx+2y-5x-10
x^2-3x+yx-10
k)5y^2(1-2y)
l)a(x+y+z)
A is your answer! Because of how many sides it has.
