Answer by  
                                                                                          wingdog987 (154)
                                                            
                          
                          
                                                          Correct answer.  
 Gallons=area x average depth x 7.5.
To figure area: length X width 
To figure average depth: (shallow end + deep end) divide by 2
example: 3.5 feet + 8.5 feet) divide 2 = 6 feet
example:  gallons =(50feet x 24feet) x 6 feet x 7.5 gallons =  54,000.