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select each of the factors you should consider when investing.

opportunity cost
risk
rate of return
liquidity

If the marginal propensity to import equals.0.10, the marginal propensity to consume must be 0.2333333

Explanation:

In order to calculate the marginal propensity to consume (MPS), we would have to use the following formula:

Multiplier =1/(MPS+MPI)

Multiplier =change in income/change in autonomous spending

Multiplier =$900/$300

=3

Therefore,  3=1/(MPS+0.1)

3MPS+0.3=1

3MPS=0.70

MPS=0.70/3=0.2333333

If the marginal propensity to import equals.0.10, the marginal propensity to consume must be 0.2333333