Math, asked by manoharsuroshe1111, 2 months ago

An estiment of cost is known as___​

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Answered by ranjeetsingh76979
2

Step-by-step explanation:

EIA's estimates for the amount of coal reserves as of January 1, 2020, by type of reserve. Demonstrated Reserve Base (DRB) is the sum of coal in both measured and indicated resource categories of reliability. The DRB represents 100% of the in-place coal that could be mined commercially at a given time.

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