True or False: If Bob's Fire Engines were a competitive firm instead and $100,000 were the market price for an engine, decreasing its price from $100,000 to $50,000 would result in the same change in the production quantity and, thus, total revenue.

Costs of production that do not change when output changes.question 17 options: total revenuefixed incometotal costfixed cost

Individual consumers belong to which step of choosing a target market? possible customers competition demographics communication

Stocks a, b, and c are similar in some respects: each has an expected return of 10% and a standard deviation of 25%. stocks a and b have returns that are independent of one another; i.e., their correlation coefficient, r, equals zero. stocks a and c have returns that are negatively correlated with one another; i.e., r is less than 0. portfolio ab is a portfolio with half of its money invested in stock a and half in stock b. portfolio ac is a portfolio with half of its money invested in stock a and half invested in stock c. which of the following statements is correct? a. portfolio ab has a standard deviation that is greater than 25%.b. portfolio ac has an expected return that is less than 10%.c. portfolio ac has a standard deviation that is less than 25%.d. portfolio ab has a standard deviation that is equal to 25%.e. portfolio ac has an expected return that is greater than 25%.