Answer:
Step-by-step explanation:
To solve this, we first need to add all the cakes together.
18 + 12 + 6 = 36
There are 36 total cakes. If each one is cut into 12 slices, we can find the number of slices using simple multiplication.
36 x 12 = 432.
Justine and her dad made 432 slices of cake for the school carnival.
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