The economy of Stranglethorn has the following parameters: Autonomous desired consumption expenditures are $450. Marginal propensity to consume out of disposable income is 0.80. Net tax rate of national income is 10%. Autonomous desired investment expenditures are $150. Autonomous government purchases are $250. Autonomous export expenditures are $100. Marginal propensity to import is 0.15. The level of desired autonomous aggregate expenditures in this economy is $|:|. (Round your response to the nearest dollar. ) The value of marginal propensity to spend in Stranglethorn is equal to (Round your response to two decimal places.)