Calculate the number of hours since the birthdate. Insert your calculation in cell C15. (hint: convert the number of days to number of hours by multiplying the number of days in C14 by 24.)

To resolve this problem, first, we need the current date and a pass day, with these two values, we're going to use the formula called "DAYS" this formula returns the numbers of day between two dates, when we get the number of days, only we must multiply the result by 24, in this case, this represents the 24 hours in a day.