$81.40-$9.00=$72.40
$72.40/.4 (cents)= 181 minutes
The answer is (-1,1)
The solution is the point where the two lines cross each other
Hope this helps

Medians are the line segments that divides a side of Triangle into two equal parts, each having equal length. and since triangles have 3 sides, they have 3 medians as well.