Iam doing numerical expressions and there is a problem that says "the number of weeks until vacation if vacation is twenty-eight days away" how would i answer this plz

In this question, you want to know the number of weeks left until vacation knowing that the number of days left until vacation is 28 days.

Now, we know that 1 week is 7 days and we want to know how many weeks are in 28 days, we can simply use cross multiplication to calculate the number of weeks as follows:
number of weeks in 28 days = (28 x 1) / 7 = 4 weeks

Therefore, 4 weeks are left until vacation.