Can you please help me answer these multiple choice:

Question 7 1 pts If there is a major increase in economic activity, an appropriate policy for government would be to: O tighten up fiscal policy O encourage individuals to save more O increase the budget surplus O all of the options Question 8 1 pts The equation by Friedman and Phelps of a relationship between the unemployment rate and its natural rate can be summarised as: O Unemployment rate = Natural rate of unemployment - Actual inflation O Unemployment rate = Natural rate of unemployment - a(Actual inflation - Expected inflation) O Unemployment rate = Natural rate of unemployment - Expected inflation O Unemployment rate = Natural rate of unemployment /(Actual inflation - Expected inflation) Question 9 1 pts The Phillips curve is: O a positive association between the inflation rate and the unemployment rate O a negative association between the inflation rate and the unemployment rate O a negative association between the interest rate and the unemployment rate O a positive association between the growth rate and the unemployment rate