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

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

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

  4.   Solve = .
    A. 6.125 B. 8
    C. 32 D. 16
    Hint

  5.   Determine whether = form a proportion. Explain.
    A. Yes, because 47.7 × 7 = 3 × 110.4.
    B. No, because 47.7 × 7 3 × 110.4.
    C. No, because 47.7 × 7 = 3 × 110.4.
    D. Yes, because 47.7 × 7 3 × 110.4.
    Hint



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