A doortodoor salesman expects to make a sale 12 of the time

A door-to-door salesman expects to make a sale 12% of the time when starting the day. But making a sale increases his enthusiasm so much that the probability of a sale to the next customer is 0.26. If he makes no sale, the probability for a sale to the next customer stays at 0.12. What is the probability that he will make at least two sales with his first three visits?