What is the answer please hurry this is to pass my class 10 points!!!

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

Agreeting card company can produce a box of cards for $7.50. if the initial investment by the company was $50,000, how many boxes of cards must be produced before the average cost per box falls to $10.50?

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line