There are 52 weeks in a year. This is calculated by dividing the number of days in a year (365) by the number of days in a week (7). So, 365 days ÷ 7 days/week = 52 weeks/year. This means that there are approximately 52 weeks in a year, although the exact number can vary slightly depending on whether a year is a leap year or not. A leap year has an extra day, which is added to the month of February. This means that a leap year has 366 days, rather than the standard 365 days in a regular year. As a result, a leap year has one extra week, making it have 52 weeks + 1 week = 53 weeks in total. However, for most practical purposes, we consider a year to have 52 weeks, as this is the standard number of weeks in a year, regardless of whether it's a leap year or not.