Since 2005, our savings as a percentage of personal disposable income has averaged a little over ______%.

A retailer buys goods worth $15,000 from a manufacturer and sells it for $18,250. He adds a value of ________ to the production process

A) $15,000 B) $3,250 C) $33,250 D) $18,250

An industry whose total output can be increased without a change in long-run per-unit costs is a(n)

A) increasing-cost industry. B) constant-cost industry. C) break-even cost industry. D) decreasing-cost industry.