Answer :
Final answer:
To determine the fraction of the wall that is limestone, divide the inches of limestone by the total inches of the wall. For example, if a 100 inch wall has 30 inches of limestone, then the fraction of the wall that is limestone is 0.3 or 30%.
Explanation:
Given this question, it seems like there are some missing details, specifically the total inches of the wall and the measurements for the various materials (concrete, brick, and limestone). Normally, to find the fraction of the wall that is limestone, you would divide the inches of limestone by the total inches of the wall.
Let's say, for example, that the wall is 100 inches wide, with 40 inches of concrete, 30 inches of brick, and 30 inches of limestone. To find out what fraction of the wall is limestone, we would divide the 30 inches of limestone by the 100 total inches to get 30/100, which simplifies to 0.3 or 30%. This means that 30 percent of the wall is limestone.
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