1. The problem statement, all variables and given/known data An Olympic-size pool is 50.0 m long and 25.0 m wide. (a) How many gallons of water (d=1.0 g/mL) are needed to fill the pool to an average depth of 4.8 ft? (b) What is the mass (in kg) of water in the pool? 2. Relevant equations density = m/V 3. The attempt at a solution I almost got all of Part (a). Here's what I did: 4.8 ft x .3048m/ft = 1.46304 m After converting the depth in feet to depth in meters, I multiplied: 1.46304 m x 50 m x 25 m = 1828.8 cubic meters. From here I do not know how to get that Volume into gallons. I think it might work if I convert to cubic feet, then to gallons? Is that right? Once I have that I know all I have to do is use the density formula to get the mass. Help please!