4. Jacobs put an old typewriter in the trash. The trash collector, Land, took the typewriter, fixed it up, and sold it to Jones for $750. Jacobs contends that he is entitled to some or all of the $750 that Land received from Jones. Based on these facts: A. Land is entitled to the value of the improvements be made, but Jacobs is entitled to the difference between the $750 Land received and the value of the improvements Land made. B. Land is entitled to keep the full $750 because Jacobs had abandoned the typewriter. C. Jacobs is entitled to the $750 because Land paid Jacobs no consideration for the typewriter. D. Jacobs is entitled to recover the typewriter from Jones.

Afreelance​ singer-songwriter is planning the restoration of a recently purchased civil​ war-era farmhouse. while he professes an enjoyment​ of, and talent in the construction​ trades, the theory of comparative advantage implies that a. the value of what he imports​ (in this​ case, professional contractor​ services) must equal the value of what he exports​ (songs). b. he should concentrate on the restoration work since his​ out-of-pocket costs will be much lower than if he hires professionals. c. ​self-sufficiency is​ advantageous, hence he should split his time between music and construction. d. the income lost while away from music will likely exceed the savings realized by doing the work​ himself, thus, he should hire professionals to do the restoration work. e. he ought to do as much of the work himself as possible since imports​ (in this​ case, professional contractor​ services) should always be restricted to those things that cannot be done internall

Carmen co. can further process product j to produce product d. product j is currently selling for $20 per pound and costs $15.75 per pound to produce. product d would sell for $38 per pound and would require an additional cost of $8.55 per pound to produce. what is the differential revenue of producing product d?

Two assets have the following expected returns and standard deviations when the risk-free rate is 5%: asset a e(ra) = 18.5% σa = 20% asset b e(rb) = 15% σb = 27% an investor with a risk aversion of a = 3 would find that on a risk-return basis. a. only asset a is acceptable b. only asset b is acceptable c. neither asset a nor asset b is acceptable d. both asset a and asset b are acceptable