A Silicon Valley billionaire purchases 3 new cars for his collection at the end of every month. Let an denote the number of cars he has after n months. Let a0 = 23. What is a8 (or how many cars does he have after the end of 8th month) ?

47 cars

Explanation:

Data provided in the question:

Number of cars purchased at the end of each month = 3

Initial number of cars i. e a0 = 23

Now,

Number of cars purchased in 8 months

= 8 * Number of cars purchased at the end of each month

= 8 * 3

= 24

Therefore, the total number of cars after the end of 8 months will be

a8 = 23 + 24

or

a8 = 47 cars