What is the connection between a tile pattern and an equation for the pattern of growth?

Which shows the correct lengths of side c in both scales? scale 1: 45 m; scale 2: 60 m scale 1: 60 m; scale 2: 45 m scale 1: 36 m; scale 2: 27 m scale 1: 27 m; scale 2: 36 m mark this and return save and exit

Pranza plotted point a in the coordinate plane below.

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?