Answer:
If 130$ means their wallets combined then its: Milan has 80$, Tom has 20$, and Yoko has 30$
Explanation:
(I'm not good at explaining but this is what is did)
20X4= 80
Milan has 4 times the amount tom has so I just multiplied something by 4
80 + 20=100
after I multiplied, I got 80 and I added the number I multiplied 4 by
20+10=30
then to get to the amount that Yoko had, I just added 10$ to the number i multiplied 4 by
100+30= 130
then I just added it