I need answers to my Finite Mathematics discussion question ASAP!

I need answers to my Finite Mathematics discussion question ASAP!

I need answers to the following math problems:

1. Solve the equation and explain the solution.

2. Solve the inequality and explain the solution.

9. Write the equation of the line that has slope
$m=-1$ and passes through the point
$(0,2)$. Explain your solution.

21. What is the equation of the function that is obtained from
$f\left(x\right)=\sqrt{x}$ by shifting
$1$ unit to the right and
$2$ units down? Explain your solution.

22. What is the equation of the function that is obtained from
$f\left(x\right)=|x|$ by shifting 3 units up in Y and then shifted 4 units to the left in X? Explain your solution.