Answer:
35
Step-by-step explanation:
It has to be b because none of the others are correct.
Total $129
129 - 24 = 105
105 / 3 = 35
Scot saves $35 last month
First multiply 40 and 10 to get 400. Then multiply 400 by 8 to get 3,200.
Your answer would be: 3,200