A hot air balloon holds 4,328 cubic meters of helium. The density of helium is 0.1785 kilograms per cubic meter. How many kilograms of helium does the balloon contain, rounded to the nearest tenth of a kilogram? 3,747.9 kg 3,875.3 kg 772.5 kg 4,383.2 kg

The answer is 772.5 kg. i know this because once you take density equals mass divided by volume then when you re arrange u get 2 diffrent equtions witch are volume equals mass divided by density. then lastly you need to have mass equals density times volume