Your employer is entitled to pay you as per the agreement. If your initial agreement states that you will be paid equally everyday, you can not claim more for Sunday work.

Not unless the separation agreement says so, and it would be an unusual inclusion.

it can affect the people everyday life because secret info do not exposed to be able to get out to public or competitors

This refers to an Individual Retirement Agreement, and is named after the one who designed it, Senator Roth. It allows you to add your savings and use them once you retire.

Because of what Miss Caroline said. She told Scout that she did not know how to correctly read and that her father didn't know how to teach. Scout is angry because she loves to read and then goes home to have an agreement with Atticus. The agreement is if they read every night then Scout will go to school everyday.