The row-echelon form of the augmented matrix of a system of equations is given. Find the solution of the system.
lo 4!
0 1 -
13
0 0 1 1
a.
X=-6
y= 4
b.
x = 5
Please select the best answer from the choices provided

Hormones perform important functions within the reproductive system. during puberty, a number of changes occur in the body. which hormone is responsible for the development of these characteristics in the female? estrogen progestin progesterone testosterone