In this question Farmer Jones needs to add 2200milliters of 2-4d weed to the mix tank. How many liter is that?

My answer is 2.2 i moved the decimal 3 places to the left an I correct

You're right! :-)

Yes, you are correct. To convert milliliters to liters, you need to divide the number of milliliters by 1000.

In this case, you have 2200 milliliters. To convert it to liters, you can move the decimal point three places to the left, which gives you 2.2 liters. So, Farmer Jones needs to add 2.2 liters of the 2-4d weed to the mix tank.