Answer:
c) $75.
Explanation:
The disposable income is the amount of personal income after taxes
we can solve for taxs using the savings identity:
Savings = Private Savings + Public Savings
where:
Private savings: personal income - personal consumption
and Public Savings = taxes - government spending
We plug the value in the formula and solve for T
5 = 85 - 70 + T - 20
5 = T - 5
T = 10
Now, we derive personal income:
85 income - 10 taxes = 75 disposable income