Respuesta :

devishri1977

Answer:

Step-by-step explanation:

1) Not proportional.

2)Proportional

[tex]\frac{28}{20} = \frac{7}{5}\\\\\frac{42}{30} = \frac{7}{5}\\\\\frac{56}{40} = \frac{7}{5}\\\\\frac{70}{50} = \frac{7}{5}[/tex]

So, it is proportional

y = (5/7) times x

nina9857

Answer:

im a dding this so u

Step-by-step explanation:

can give brainliest to the guy lol