1.   Solve .
    A. 40 B. 2.5
    C. 10 D. 320
    Hint

  2.   Cole can read 6 pages in 14 minutes. At this rate, how long will it take him to read a chapter that has 21 pages?
    A. 9 min B. 27 min
    C. 42 min D. 49 min
    Hint

  3.   Solve
    A. 7 B. 6
    C. 4.5 D. 4
    Hint

  4.   Solve = .
    A. 121.5 B. 6
    C. 24 D. 12
    Hint

  5.   Determine whether = form a proportion. Explain.
    A. No, because 8 × 15 ? 10 × 12. B. Yes, because 8 × 15 = 10 × 12.
    C. Yes, because 8 × 12 ? 10 × 15. D. No, because the ratios are not equal.
    Hint



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