What invention did henry ford create that assisted in the manufacture of cars?

Henry Ford invented the procedure of manufacturing cars on an assembly line. This means that cars were manufactured in a serial way, rather than building each of them one at a time. This invention assisted in the manufacture of cars.

29. because you will divide each number of months by 12 to find the number of years. which would mean, 5, 12.5, 16, 45, 50, 72.5. which is crazy. anyhow, i think you find the median in the middle. and yea hope your test goes good