Match the following terms with the correct$$ definitions:

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Part $1$

$1.$

Costs that do not change in total over wide ranges of volume.

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$2.$

Technique that estimates profit or loss results when conditions change.

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$3.$

The sales level at which operating income is zero.

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$4.$

Drop in sales a company can absorb without incurring an operating loss.

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$5.$

Combination of products that make up total sales.

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