Hi, I'm having a little trouble with my Stats200 homework, I don't understand how to do the last 2 problems and any double checking of the answers I provided for the previous questions wouldn't hurt either thanks in advance

Problem:

A sporting goods store announces a "wheel of Savings" sale. Customers select the merchandise they want to purchase, then at the cash register they spin a wheel to determine the size of the discount they will recieve. The wheel is divided into 12 regious, likc a clock. Four of those regions are red, and award a 5% discount. The three white regions award a 10% discount, two blue regions a 25% discount, two green regions a 30% discount. The remaining regioin is gold and a customer whos lucky spin lands there gets a 50% discount!

1. What is the probability that a customer gets at least a 25% discount?

My answer: .1667

2. What is the probability that two customers in a row get only 5% discounts?

My answer: .111

3. What is the probability that three consecutive customers all get 25% discounts?

My answer: .01389

4. What is the probability that none of the first four customers gets a discount over 25%?

My answer: .3164

5. What is the probability that the first gold winner(50%) is the fifth customer in line?

My answer: no clue

6. What is the probablity that there is at least one gold winner among the first six customers?

My answer: no clue