How many seconds are in a millenium? standard form or i will report you.

Explanation:

A millenium is a period of 1,000 years.

To find the number of seconds in a millenium, you can build your conversion factors using the known conversions from milenum to years, from years to days, from days to hours, from hours to minutes, and from minutes to seconds.

Thus, you conversion is:

The units milleniun, year, days, hours and minutes are cancelled because they appear once as numerator and once as denominator.

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value