Respuesta :

pcai26

Answer:

upper left: -7/3, lower: 3, upper right: -2/3

Step-by-step explanation:

upper left :

(1-8)/(7-4)=-7/3

lower:

(9-0)/(4-1)=9/3=3

upper right:

(-1-5)/(6-(-3))=-6/9=--2/3