Suppose that investment demand increases by $300 billion in a closed and private economy (no government or foreign trade). assume further that households have a marginal propensity to consume of 75 percent. what will be the final cumulative impact on spending? enter your answer in billions. for example if your answer is $600 billion then enter 600. if your answer is $1,500 then enter 1500.

Now ray has had the tires for two months and he notices that the tread has started to pull away from the tire. he has already contacted the place who sold the tires and calmly and accurately explained the problem. they didn’t him because they no longer carry that tire. so he talked with the manager and he still did not get the tire replaced. his consumer rights are being violated. pretend you are ray and write a letter to the company’s headquarters. here are some points to keep in mind when writing the letter: include your name, address, and account number, if appropriate. describe your purchase (name of product, serial numbers, date and location of purchase). state the problem and give the history of how you tried to resolve the problem. ask for a specific action. include how you can be reached.