Sebastian's friend gives him 4 special edition baseball cards to start his own collection. Sebastian then buys 6 new baseball cards for his collection every month. If x is the number of months, what is the linear function, f(x) that represents the total number of baseball cards in sebastians collection as a function of the number of months?

Assume that there is a 11% rate of disk drive failure in a year. a. if all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. if copies of all your computer data are stored on four independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?