(b) You are the President, RWA Silver Oak Society. Draft a notice for the society notice board informing residents about the appointment of security guards at Gate Nos. 2, 3, and 4 and an increase of {tt{rupee}} 1,000 in the annual maintenance charges to meet the expenditure. Mention relevant details.
(b) Notice for Society Notice Board
This is to inform all residents that security guards have been appointed at Gate Nos. 2, 3, and 4 to ensure the safety and security of the society. Consequently, an increase of ₹1,000 in the annual maintenance charges will be implemented starting February 2025 to meet the additional expenditure.
We request all residents to cooperate and adhere to the new changes for the betterment of our community. For any queries, contact the undersigned.
President
RWA Silver Oak Society
If \[ A = \begin{bmatrix} 1 & 2 & 0 \\ -2 & -1 & -2 \\ 0 & -1 & 1 \end{bmatrix} \] then find \( A^{-1} \). Hence, solve the system of linear equations: \[ x - 2y = 10, \] \[ 2x - y - z = 8, \] \[ -2y + z = 7. \]