gal --> L --> mL --> g --> lb --> tons
The following for calculating the density is expressed as;
[tex]density=\frac{mass}{volume}[/tex]Convert gallons to Litres
1 gallon = 3.785 liters
208,000 gallons = 787280Litres
Convert Litres to mL
[tex]\begin{gathered} 1L=1000mL \\ 787,280L=787280\times1000 \\ 787,280L=787,280,000mL \end{gathered}[/tex]Determine the mass
[tex]\begin{gathered} Mass=density\times volume \\ Mass=\frac{1.00g}{mL}\times787,280,000mL \\ Mass=787,280,000g \end{gathered}[/tex]Convert grams to pounds
[tex]\begin{gathered} Mass\text{ of water}=0.00220462\times787,280,000 \\ Mass\text{ of water}=1735653.23lb \end{gathered}[/tex]Convert pounds to tons
[tex]\begin{gathered} Mass\text{ of water in ton}=0.0005\times1735653.23 \\ Mass\text{ of water in ton}=867.82tons \end{gathered}[/tex]Based on the solution above, the correct map that outline the steps to find the weight of the water in a filled swimming pool in tons is gal --> L --> mL --> g --> lb --> tons