Hi, Alan!
Okay, so let's call:
X = amount of $ Manuel has
Jim has 4X amount of $
Raina has X + 10
Let's add them up:
X + 4X + X + 10 = 136
6X = 126
X = 21
Therefore,
Manuel has $21
Jim has $84
Raina has $31
Let's check our answer:
21 + 84 + 31 = 136