Please answer all the questions each with an explanation!

9.Which of the following could help decrease the rate of increase of spending on health care in the United States?

a. a reduction in the deductibles on private health insurance policies.

b. an increase in the coinsurance (copayment) rate on health insurance and subjecting a larger. volume of services to coinsurance.

c. extending Medicaid insurance to all persons who are poor.

d. a requirement that patients are entitled to a minimum hospital stay for certain ailments.

10.Social Security tax rates can be reduced if:

a. taxable wages decline.

b. the retirement age is lowered.

c. the retirement age is raised.

d. the work force decreases in size relative to retirees.

11.Assuming a full employment economy, which of the following should NOT be included as a benefit of a government project to build a new highway when doing a cost-benefit analysis.

a. the income of construction workers employed to build the highway.

b. the value of the time saved on trips between points to be served by the new highway.

c.a decrease in the number of accidents.

d. decrease in air pollution.

12.Social security is largely funded by:

A. federal general fund revenues like other government activities.

B.a special tax on wage earnings to the extent they exceed approximately $127,000.

C.a special tax on wage earnings up to approximately $127,000.

D.investment returns from past social security contributions.