Respuesta :

sabrinamahreen10

Answer:

1. 60:80

2. 90:120

3. 120:160

Step-by-step explanation:

1. 30(2) : 40(2) = 60:80

2. 30(3) : 40(3) = 90:120

3. 30(4) : 40(4) = 120:160

IEATBACON131

Hello!!

Answer:

60:80

and

90:120

Hope this helps!!! :)