This equals 19.872.
If you multiply 7.2 by 12 and 0.23 then you would get 19.872 then to round it to the nearest hundredth it would be 19.902 because 7 is a greater number than 5 so that would make the 8 into a 9 and then 7 into a 0 and then you would keep the 19 and the 2