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Berlandia's senate recently introduced two bills to address the problem of overburdened landfills: one would require that at least 40 percent by weight of the plastics sold in that country be biodegradable, the other that at least 80 percent by weight of plastics sold there be recycled into useful products. One legislator, however, has claimed that biodegradable plastics cannot be recycled into useful products, even if the biodegradables are mixed with other plastics.
The legislator's claim, if true, most strongly supports which of the following?

• A. If both bills are passed, the amount of nonbiodegradable plastics that reach Berlandia's landfills will soon increase over present levels.
• B. If a plastic product contains a significant amount of recycled material, that product will probably not contain biodegradable materials as well.
• C. The cost of products made from recycled plastics will increase significantly unless neither bill Is passed.
• D. Eventually, only plastics that are biodegradable will be sold in Berlandia, whether or not both bills are passed.
• E. If both bills are passed, violations of at least one of the new laws will undoubtedly occur.

Which of the following, if true, would most undermine the reasoning offered for the claim that gray markets can in certain conditions lead to increased profits among authorized retailers?

• A. Authorized retailers who are competing for the business of price-insensitive consumers often become involved in a cycle of expensive service enhancements that significantly narrow profit margins.
• B. More consumers have become price-sensitive over the last ten years and this trend will continue for the foreseeable future.
• C. Price wars among authorized retailers, triggered by the appearance of gray markets when few, if any, consumers are price-insensitive, lead to a cycle of increasing price reductions that severely narrow profit margins.
• D. Manufacturers who fear that gray marketing will tarnish their brand names sometimes subsidize advertising for authorized retailers, thereby narrowing the manufacturers' profit margins.
• E. Gray markets typically remain strong even in markets where authorized retailers have introduced service enhancements.

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A region in a plane is said to be convex if, for every two points in the region, the line segment joining the two points is completely contained in the region. If a sector of a circle has a central angle with degree measure m >
0, which of the following determines the set of all values of m (less than 360) for which the sector is convex?

• A. 0 < m 180
• B. 90 m 180
• C. 0 < m < 360
• D. 180 m < 360
• E. 0 < m > 90

The sum of the first n positive odd integers is n2 . What is the sum of the of the odd integers from 25 to 79, inclusive?

• A. 792-222
• B. 802-232
• C. 402-122
• D. 802-232
• E. 392-122

The law imposes criminal liability on corporate officials who are responsible for distributing food and drug products if they fail to fulfill their specific duty for implementing measures to ensure that violations of safety rules do not occur.

• A. responsible for distributing food and drug products that fail to fulfill a specific duty,
• B. who ate responsible for distributing food and drug products, failing to fulfill their specific duty for
• C. who are responsible for distributing food and drug products if they fail to fulfill their specific duty for
• D. responsible for distributing food and drug products but fail to fulfill their specific duty to
• E. who are responsible for distributing food and drug products but who fail to fulfill a specific duty: