Question

8 (5x+9y) + 12 (5x9y)​

Answer 1

Step-by-step explanation:

Also, marginal propensity to save is opposite of marginal propensity to consume. Mathematically, in a closed economy, MPS + MPC = 1, since an increase in one unit of income will be either consumed or saved. In the above example, If MPS = 0.4, then MPC = 1 - 0.4 = 0.6.

Answer 2

Answer:

40x+72y+540xy.

Step-by-step explanation:

(40x+72y)+(540xy)

= 40x+72y+540xy.