If your income increases from $30,000 to $40,000 and your savings increases from $2,000 to $4,000, your marginal propensity to save (MPS) is:
A) 0.2.
B) 0.4.
C) 0.5.
D) 0.8.

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The Answer of If your income increases from $30,000 to $40,000 and your savings increases from $2,000 to $4,000, your marginal propensity to save (MPS) is:
A) 0.2.
B) 0.4.
C) 0.5.
D) 0.8.

If Your Income Increases from $30,000 to $40,000 and Your