Joanna has $<<8=8>>8.

Joanna's brother has thrice as much as Joanna, so he has $8 * 3 = $<<8*3=24>>24.

Her sister has half as much as Joanna, then she has $8/2 = $<<8/2=4>>4.

Together they have $8 + $24 + $4 = $<<8+24+4=36>>36 altogether.

# Answer

36
Question:
Joanna has $8. Compared to her money, her brother has thrice as much while her sister has only half as much. How much money do the three of them have altogether?
Answer:
Let's think step by step.

user
36
Joanna has $8. Compared to her money, her brother has thrice as much while her sister has only half as much. How much money do the three of them have altogether?
train