Engineering Economics
What refers to an imaginary cost representing what will not be received if a particular strategy is rejected?

Null cost
Opportunity cost
Horizon cost
Ghost cost

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Engineering Economics
Liquidity ratios are used:

To obtain much insight into the present cash solvency of the firm and the firm
All of these
To compare short term obligations to short-term resources available to meet these obligations
To measure a firm’s ability to meet short-cut obligations

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