Question 1025212
Main Street : {{{P[m]=40+2M}}}
County : {{{P[c]=20+3M}}}
{{{P[m]=P[c]}}}
{{{40+2M=20+3M}}}
{{{-M=-20}}}
{{{M=20}}}
20 miles
,
,
,
{{{P[c](20)=20+3(20)=20+60=80}}}
$80