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23 stones will be needed (you have to round up, since you can't have a fraction of a stone)
(4ab^2-5ba-2ba^2+a^2+4b^3+a^3)(2b+a)/ a-4b^2
She made 6 patches of cookies because if she uses 1/8 per batch and 3/4 x2 equals 6/8 , she made 6 batches.
Answer:
c
Step-by-step explanation: