You have 10 pairs of socks, five black and five blue, but they are not paired up. instead they are all mixed up in a drawer. it is early in the morning and you do not want to turn on the light.

1. how many socks must you pull out to guarantee that you have a pair of one color?
2. how many must you pull out to have two good pairs(each pair is the same color)?
3. how many must you pull out to be certain that you have a pair of black socks? use a systematic approach to list all possible outcomes as a way to justify the answer in each case.

Richardson hired j. c. flood company, a plumbing contractor, to correct a stoppage in the sewer line of her house. the plumbing company's 'snake' device, used to clear the line leading to the main sewer, became caught in the underground line. to release it, the company excavated a portion of the sewer line in richardson's backyard. in the process, the company discovered numerous leaks in a rusty, defective water pipe that ran parallel with the sewer line. to meet public regulations, the water pipe, of a type no longer approved for such service, had to be replaced either then or later, when the yard would have to be excavated again. the plumbing company proceeded to repair the water pipe. though richardson inspected the company's work daily and did not express any objection to the extra work involved in replacing the water pipe, she refused to pay any part of the total bill after the company completed the entire operation. j. c. flood company then sued richardson for the costs of labor and material it had furnished. (c) for what, if anything, should richardson be liable? explain."

Which of the following is not a characteristic of a weak economy? a. a low employment rateb. a high inflation ratec. a decreased gdpd. a high unemployment rate

Acompetitive market in healthcare would a. overprovide healthcare because the marginal social benefit of healthcare exceeds the marginal benefit perceived by consumers b. underprovide healthcare because it would eliminate medicare and medicaid c. underprovide healthcare because the marginal social benefit of healthcare exceeds the marginal benefit perceived by consumers d. overprovide healthcare because it would be similar to the approach used in canada