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An IRB proposal must include research instruments and consent forms, as applicable, as well as ______.
Variable Manufacturing Costs
Charges that fluctuate based on the volume of production, like components used in product assembly and wages for workers on the production line.
Variable Selling Expenses
Selling costs that fluctuate with sales volume, such as commissions for sales staff.
Break-Even Sales
The amount of revenue required to cover all fixed and variable expenses, resulting in zero profit.
Variable Expenses
Expenses that vary directly with the level of production or sales, such as raw materials and direct labor costs.
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