The owner of a recreation area filled a small pond with water in 120 minutes. The pond already had some water at the beginning. What is the domain and range for this problem

domain is the set defined as {x: 0<=x<=120}
That is a collection of all the numbers x such that 0 <= x <= 120
[tex]\mleft\lbrace x\colon0\le x\le120\mright\rbrace[/tex]The range is the set given as
[tex]\mleft\lbrace y\colon600\le y\le1500\mright\rbrace[/tex]