Matt he bought five book he needed 9 how many more he needed

Find the power series expantion of f(z)=log(4=3z) at the point z=-1

Fiona and her friends are playing a game by guessing where a coin will land when it is randomly dropped inside the square shown below. fiona guesses that the coin is likely to land in the blue area. which explains whether or not fiona is correct and why?

Find the solution of system of equation y= x-4 y=4x+2