Ethene Builders constructs houses. The standard labor rate is $20 per hour and the standard number of hours is 13,000 hours per home. During the year, it constructed 12 homes using 15,000 labor hours per home and a rate of $23 per hour. Calculate the labor efficiency variance. a.$480,000 U b.$480,000 F c.$540,000 F d.$540,000 U

Iwant to be an engineer but cant do math for the life of me, but i also want to be a cop."what should i do"

4. suppose that pollution in a neighborhood comes from two factories, with marginal benefit curves given by mb1 = 12 – p1 and mb2 = 8 – p2. the level of pollution in the neighborhood is given by p = p1 + p2. the government wants to limit pollution by instituting a pollution-rights market. the government’s desired level of p is 10, so it prints 10 pollution rights and offers them for sale to the firms.a)find the equilibrium selling price of a pollution right, as well as the allocation of rights (and hence pollution levels) across the two factories. b)repeat part (a) for the case where the government’s desired level of pollution equals 14. c)comment on the usefulness of a pollution rights market in achieving efficient levels of pollution abatement.

Select the correct answer a research organization conducts certain chemical tests on samples. they have data available on the standard results. some of the samples give results outside the boundary of the standard results. which data mining method follows a similar approach? o a. data cleansing ob. network intrusion o c. fraud detection od. customer classification o e. deviation detection