The length of CD is 7-3=4.
Therefore, if we dilate by a scale factor of 3, the length is 4(3) = 12
 
        
             
        
        
        
Answer:
Step-by-step explanation:
8 ft = (12 * 8) = 96 inches
3 ft 9 in = (12 * 3) + 9 = 45 inches
510 gallons to 96 inches = x gallons to 45 inches
510 / 96 = x / 45....cross multiply because this is a proportion
(96)(x) = (510)(45)
96x = 22950
x = 22950 / 96
x = 239.0625 rounds to 239.1 gallons <===
 
        
             
        
        
        
The only possibility would be 1