A tax on gasoline encourages people to drive smaller, more fuel-efficient cars. Which principle of economics does this illustrate?.

Given the following information, calculate the savings ratio: liabilities = $25,000 liquid assets = $5,000 monthly credit payments = $800 monthly savings = $760 net worth = $75,000 current liabilities = $2,000 take-home pay = $2,300 gross income = $3,500 monthly expenses = $2,050 multiple choice 2.40% 3.06% 34.78% 33.79% 21.71%

He interest rate effect is the change in real gdp caused by the federal reserve adjusting target interest rates. is the change in consumer and investment spending due to changes in interest rates resulting from changes in the aggregate price level. is the change in exports and imports, resulting from changes in the interest rate caused by changes in the aggregate price level. is the change in investment spending and government purchases caused by changes in money demand. is the change in interest rates, caused by changes to government purchases.

The answer here, x=7, is not in the interval that you selected in the previous part. what is wrong with the work shown above?