What is the Marginal Propensity to Consume (MPC) in this model?

Consider the simplest macro model with demand-determined output.      The equations are:

C = 150 + 0.8Yd,                      Yd = Y-T,

I = 400,                                    G = 700,

T = .2Y,                                    X = 130, and

IM = 0.14Y.

  1. What is the Marginal Propensity to Consume (MPC) in this model?

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