What is the scale factor of the reduction?
GIVEING BRAINLY 3

Scale factor
[tex]\\ \rm\rightarrowtail k=\dfrac{y}{x}[/tex]
[tex]\\ \rm\rightarrowtail k=\dfrac{0.5}{2.5}[/tex]
[tex]\\ \rm\rightarrowtail k=\dfrac{1}{5}[/tex]