Engineering Economics
Return on investment ratio is the ratio of the:

Net credit sales to average net receivable
Market price per share to earnings per share
Net income to owner’s equity
Cost of goods sold to average cost of inventory at hand

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Engineering Economics
In a cash flow series:

The gradient in the cash flow may be positive or negative
Either an increase or decrease in the amount of a cash flow is called the gradient
Uniform gradient signifies that an income or disbursement changes by the same amount in each interest period
All of these

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