Binomial Trials, Probability, Please Help, I will love you.

Alright here is the break down.....I would really appreciate someone helping me realize how to do this problem. I am so lost, my prof is a ****.

:confused: :confused: :confused: :confused: :confused: :confused:

Rosemary works in phone sales for a car insurance company. She has a success rate of 35% of getting a caller to buy car insurance from her company. The sales manager tells the phone sales staff that anyone who makes 10 sales that day will get a $500 bonus. If we take each call Rosemary handles as a binomial trial then:

A) How many call must she take to insure a 95% probability that she will get the bonus?

B) On average, how many sales will she amke if she takes the number of calls you found in part a above?

C) Find the avreage number of calls she must take for each sale.

Thank you soooo much for any help.

-IHateMyProf