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A buyer who is quote-matching

Based on the exhibit in Question 1, what is the quoted spread for GOOG in dollars?

Suppose you were thinking of trading Google (GOOG).  You look up the market conditions for the stock you your favorite web-site, and find the following information: If you were to submit a 500 share market sell order, how much would you expect to get for each GOOG share?

In class, we used the following approach to demonstrate that you can use the TS instruction to implement general semaphores. sema_general_S22.JPG Suppose the initial value of value is 2. Please use one example to justify while(!s.hold); is necessary. 

The following solution was proposed to solve the critical section problem. Is it a good solution? Please briefly explain.   interrupt_S22.JPG

Is the following solution correct to solve the Dining Philosopher problem? If yes, what is its weakness? If no, please use ONE EXAMPLE to show why it is not correct.  dining_S22.JPG

We discussed the following solution in the class. In the following solution, L and len are data shared by process P1 and P2. 1. deadlock_S22.JPG Please give one example to show why the solution is not correct. 2.Please use a monitor to solve the problem. 

What is the purpose of the beta blocker carvedilol (Coreg)?

Recently, many well known producers such as Walmart, Columbia Sportswear, and Autozone have announced price increases in light of new tariffs places on imported goods that are widely used throughout the US economy. Inflation numbers have been relatively stable over the past few months. Which of the following explains these firms’ decision to raise prices?

Suppose that unemployment has been high for a prolonged period of time and the FED is trying to use monetary policy to get back to the full level of employment. Which curve reflects the best course of action? (Assume first graph is A, second graph is B, etc.)                          Graph A                           Graph B                            Graph C                            Graph D