If the MPE = .6, I_r = $200 billion billion, a one percentage point change in r will change the level of aggregate demand by A) $270 billion. B) -$625 billion. C) $625 billion. D) -$270 billion.

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The Answer of If the MPE = .6, I_r = $200 billion billion, a one percentage point change in r will change the level of aggregate demand by A) $270 billion. B) -$625 billion. C) $625 billion. D) -$270 billion.