John paid $60,000 to replace the roof on a warehouse he used in his business. In addition, he spent $12,500 to demolish and remove the old roof before he could start work on the replacement roof. Which of the following is a correct statement?

Dr. dow jones wants to know whether a problem-based approach to teaching economics will result in higher academic performance than his traditional method. of the six sections of economics 101 at his university, dr. jones randomly assigns three sections to the traditional method and three sections to the problem-based method for unit 1 of the course. then all sections switch the instructional method for unit 2. he plans to compare the performance of the two groups of sections on their unit 1 and unit 2 exams. this study employs a design.

Joe finally found a house for sale that he liked. which factor could increase the price of the house he likes? a. both he and the seller each have a real estate agent. b. a home inspector finds faulty wiring in the house. c. the house has been for sale for almost a year. d. several buyers all want that same house.

Select all that apply. select the ways that labor unions can increase wages. collective bargaining reducing the labor supply increasing the demand for labor creating monopolies