To find out how much more Suzi can spend on arts and crafts supplies without exceeding her budget, we first need to calculate how much she has already spent this month.
- Suzi's budget for the month: $40
- Amount spent on specialty paper: $12
- Amount spent on felt: $8
- Total spent so far: $12 + $8 = $20
Now we can determine how much she has left to spend:
- Amount left to spend: $40 - $20 = $20
Therefore, Suzi can spend an additional $20 this month on arts and crafts supplies without having a negative balance.
The correct answer is $20.