Respuesta :

Answer:

10:8

20:16

Step-by-step explanation:

Hope this helps!!!!!!

Answer: 10 : 8 and 15 : 12

Step-by-step explanation:

5 : 4 ⇔ 10 : 8  (multiply by 2)

5 : 4 ⇔ 15 : 12   (multiply by 3)

Hope I helped!