I believe the answer is range
You multiply 4 by 3 because he got 4 stamps each week for 3 weeks. That leads to it being 12 stamps in total.
He wants 6 stamps out of 12 on each page of his album, so you divide 12 by 6 and get two.
He will use 2 pages.
The tools used were mathematical reasoning, multiplication and division.
1. 3,-10
2. 10x + y
3. 2x - 3y
Answer:
Answer is "No real Solution"