Please explain the answers

3. You knew this one was coming;: a. List Marshall's 4 Rules of Derived Demand. [{] e b. The masonry and bricklaying firms in the\\':nver area intend to form a union to command higher wages. As they are preparing to negotiate, a new product is released into the market. This device uses Al-informed processes to automatically lay and repair bricks. Use the relevant Marshallian rule to explain what will happen to the union's likelihood of securing higher wages because of the entry of the AutoMason, 6] 1 = i o -_ " E 1 4. Why is the demand curve for labor downward sloping? [6] an v R - 5 ~ e S 5. 'If a married woman's husband gets a raise, she tends to work less, but if she gets a wage raise, she tends to work more\". Evaluate the accuracy of the above statement using a budget constraint and indifference curves. (Hint: You will have to make assumptions to answer these questions. Please state these assumptions explicitly). (6] -t =T