1.explain how and why an all-volunteer army actually be cheaper than an army staffed with drafted soldiers. 2.what are resources? describe two different types of resources. 3.thinking about inventory as investment is sometimes confusing. what service does inventory provide that would cause economists to count it as investment? 4.he pays her minimum wage. 5.list four reason to study economics. 6.why is there a negative relationship between the interest rate and the level of investment? 7.explain why the time lags, in general, pose a challenge to policy markers. answer dont too long, need short answer thks