Since m + n = 7 we know m = 7-n. So now we have 2n - 3(7-n) = 6. From this we get n = -3. So now we know m - 3 = 7 so m = 10. So now we have 3(-3) + 2(10) = ? and this comes out as 11
It would cost $4.50 to purchase 2 books.
Answer:
answer A
Step-by-step explanation:
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The answer to your question is d 354