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Questions : See the graphs on the fol.-lowing page for information to answer the questions.
Adult education participation rates in the past 12 months: 1991 and 1995

Bob and Jack share an apartment. If each month Bob pays a dollars and Jack pays b dollars, what percent of the total cost does Bob pay

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For how many positive integers m ≤ 100 is (m -5)(m -45) positive

(A) 45
(B) 50
(C) 58
(D) 59
(E) 60

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B