probability that a computer salesperson sells a computer to a customer on the first visit is 0.4. If the salesperson fails on the first visit, the probablility that a sale will be made on the second visit is 0.65. The salesperson never visits a customer more than twice.

- Find the probability the salesperson fails to make a sale on the first visit and subsequently makes a sale on the second visit
- Find the probability that the salesperson will make a sale to a prospective customer