Once a company exceeds its breakeven level, operating income can be calculated by multiplying: a. The sales price by unit sales in excess of breakeven units. b. Unit sales by the difference between the sales price and fixed cost per unit. c. The contribution margin ratio by the difference between unit sales and breakeven sales. d. The contribution margin per unit by the difference between unit sales and breakeven sales.

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1) the stages a new product goes through from beginning to end, i.e., the stages that a product passes through from introduction through growth, maturity, and decline. 2) the time from initial research and development to the time at which sales and support of the product to customers are withdrawn. 3) the period of time during which a product can be produced and marketed profitably.

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answer: marginal utility of the fourth brownie is 0.

explanation: marginal utility is the addtional utility gained from the consumption of one more unit of a good. it is given by,

so, marginal utility at the 4th unit will be given by

since, the values are not given here, you can simply find marginal utility at fourth unit by subtracting total utility at 3rd unit from total utility at 4th unit.