Answer:
Step-by-step explanation:
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Brent will need 12 boxes.
1/36.
A total number of possible outcomes = 36.
To get a sum of 12 the possible outcomes are just 6,6.
number 1. answer 3x+6
number 2. answer 2r-8
number 3. answer 4y+8
number 4. answer 24-6x