Respuesta :

ST/ NO = SR/ NM = RT/OM

6/15 = 8/20 = 4/10

simplify these

2/5 = 2/5 = 2/5



ST/ NO = SR/ NM

SR/ NM = RT/OM

If you proportion these you get

6/15 = 2/5

8/20 =  2/5

4/10 = 2/5

2/5 is the proportion that supports her statement.