Convert 5 years 9 months into months.

The correct answer is: 69

1 year = 12 months
Therefore, 5 years 9 months = (5 × 12) months + 9 months
= (60 + 9) months = 69 months

We know that there are 12 months in a year. So, in 5 years, there will be a total of 5 x 12 months = 60 months. Therefore, total number of months in 5 years 9 months = 60 + 9 months = 69 months.