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Answer:
5 sandwiches, 7 granola bars in each of the 6 baskets
Explanation:
You are being asked to find the largest common factor of 30 and 42. Your knowledge of multiplication tables tells you ...
30 = 5·6
42 = 7·6
The largest factor common to both numbers is 6. That is the number of baskets that can be made. The above factorizations tell you that the contents of each of those 6 baskets can be ...
5 sandwiches
7 granola bars