Jake’s roof repair has provided the following data concerning its costs:
- fixed cost per month cost per repair-hour
wages and salaries $ 23,200 $ 16.30
parts and supplies $ 8.60
equipment depreciation $ 1,600 $ 0.40
truck operating expenses $ 6,400 $ 1.70
rent $ 3,480
administrative expenses $ 4,500 $ 0.80
for example, wages and salaries should be $23,200 plus $16.30 per repair-hour. the company expected to work 2,800 repair-hours in may, but actually worked 2,900 repair-hours. the company expects its sales to be $44.50 per repair-hour.
required:
compute the company’s activity variances for may.

Kyle and alyssa paid $1,000 and $4,000 in qualifying expenses for their two daughters jane and jill, respectively, to attend the university of california. jane is a sophomore and jill is a freshman. kyle and alyssa's agi is $135,000 and they file a joint return. what is their allowable american opportunity tax credit after the credit phase-out based on agi is taken into account?

Which of the following is an example of a positive externality? a. promoting generic drugs would benefit people. b. a lower inflation rate would benefit most consumers. c. compulsory flu shots for all students prevents the spread of illness in the general public. d. singapore has adopted a comprehensive savings plan for all workers known as the central provident fund.

Google started as one of many internet search engines, amazon started as an online book seller, and ebay began as a site where people could sell used personal items in auctions. these firms have grown to be so large and dominant that they are facing antitrust scrutiny from competition regulators in the us and elsewhere. did these online giants grow by fairly beating competition, or did they use unfair advantages? are there any clouds on the horizon for these firms -- could they face diseconomies of scale or diseconomies of scope as they continue to grow? if so, what factors may limit their continued growth?