10.00 points Suppose that the aggregate expenditure curve can be expressed algebraically as AE 3,000 2,000r, where AE is aggregate expenditures and r is the real interest rate expressed as a decimal. You check the website of the Congressional Budget Office and learn that the level of potential output is 2,875. What is the long-run real interest rate? Instructions: Round your answer to the nearest tenth (1 decimal place) The long-run real interest rate is