Refer to the graph shown. If labor costs $10 per unit and machines cost $15 per unit, the economically efficient cost of producing 500 units of output is: 
Definitions:
Product Life Cycle
Refers to the progression of a product through different stages from introduction to growth, maturity, and eventually decline.
New Product
A good, service, or idea that has recently been introduced to the market, offering new benefits or satisfying newly identified needs or market niches.
Economic Change
A shift in the state of an economy, often marked by fluctuations in employment, prices, and wealth, potentially initiated by policy, market, environmental, or technological alterations.
Demographic Change
The alteration over time in the statistical characteristics of a population, such as age, race, or income.
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