What is the next step in solving this augmented matrix using the Gauss-Jordan elimination method? [ 1 0 0 : 5 ]
[ 0 2 0 : 8]
[ 0 0 2 : 9]
A. Convert the matrix to the linear system form.
B. Divide R2 by 2 and R3 by 3.
C. The matrix is solved.
D. This is an inconsistent matrix that cannot be solved.
E. Divide R1 by 2 and R3 by 3.

Step by step explanation pls for 10 pts the length of a rectangular board is 3 feet less than twice its width. a second rectangular board is such that each of its dimensions is the reciprocal of the corresponding dimensions of the first rectangular board. if the perimeter of the second board is one-fifth the perimeter of the first, what is the perimeter of the first rectangular board?