Step-by-step explanation:
[tex]\text{The total amount in the bags is }(54\text{ bags})(1080\text{ g})=58320\text{ g}[/tex]
[tex]\text{The collective amount of rice is thus }(58320+704)\text{ g}\cdot\frac{1\text{ kg}}{1000\text{ g}}=59.024\text{ kg}[/tex]
