Question 1044487
The greatest common divisor of {{{49}}},{{{42]]], and {{{21}}}
is {{{ 7 }}}
the model would be:
{{{ 49/7 = 42/6 = 21/3 }}}
{{{ 7 }}} = number of lawns mowed on friday
{{{ 6 }}} = number of lawns mowed on saturday
{{{ 3 }}} = number of lawns mowed on sunday
The most they could have charged for each lawn is $7