Question 1182003
given:

{{{y = 7.00x}}}

${{{1960}}} on Friday,=>{{{y=1960}}}

{{{1960 = 7.00x}}}
{{{1960/7.00=x}}}
{{{x=280}}}

 ${{{2324}}} on Saturday, =>{{{y=2324}}}

{{{2324 = 7.00x}}}
{{{2324/7.00=x}}}
{{{x=332}}}

 ${{{1813}}} on Sunday=>{{{y=1813}}}

{{{1813 = 7.00x}}}
{{{1813/7.00=x}}}
{{{x=259}}}

the domain for this situation is  the set of values of {{{x}}}: {{{259}}},{{{280}}},{{{332}}}