1.

Please answer correctly and fastalso guess from which lesson it is​

Answer»

Answer:

Efficiency signifies a peak LEVEL of performance that USES the least amount of inputs to achieve the highest amount of output. ... It is a measurable CONCEPT that can be DETERMINED USING the ratio of useful output to total input.

Explanation:

Efficiency signifies a peak level of performance that uses the least amount of inputs to achieve the highest amount of output. ... It is a measurable concept that can be determined using the ratio of useful output to total input.

please mark as brainlist bro please



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