The answer is A) 5b
Lets try an example:
Lets say we have 3 boxes in total of both board games. We can solve for b since b = 3 in the example.
= 5b
= 5(3)
= 15 dice in total
We can check our answer by adding the amount of dice per box.
2 + 3 = 5
Then multiplying by the number of boxes.
5 * 3 = 15 dice total
