Final answer:
To find the fluid's density in kg/m³, convert the volume from gallons to cubic meters and the weight from ounces to kilograms. Then, divide the weight in kilograms by the volume in cubic meters.
Step-by-step explanation:
To find the fluid's density, we need to convert the volume from gallons to cubic meters, and the weight from ounces to kilograms. First, we convert the volume: 1 gallon is approximately 3.78541 liters, and 1 liter is equal to 0.001 cubic meters. So, 2.1 gallons is approximately 2.1 x 3.78541 x 0.001 cubic meters. Next, we convert the weight: 1 ounce is approximately 0.0283495 kilograms, so 155.2 ounces is approximately 155.2 x 0.0283495 kilograms. Finally, we calculate the density by dividing the weight in kilograms by the volume in cubic meters: density = (155.2 x 0.0283495) / (2.1 x 3.78541 x 0.001) kg/m³.