I WILL GIVE YOU BRAINLIEST PLEASE HELP

Using this method solve this for me
A = P(1+r/n)^(n)(t)
- Write an equation to model the value of the stock investment after t months.

He expression 2(l + w) is used to calculate the perimeter of a rectangle, where l is length and w is width. if the length is fraction 2 over 3 unit and the width is fraction 1 over 3 unit, what is the perimeter of the rectangle in units? fraction 2 over 3 unit 1 unit 1fraction 2 over 3 units 2 units

Ihonestly have no clue if it's each or none.

For a function f(x), a) if f(7) = 22 then f^-1(22) = b) f^-1(f(c)) =