1.   Solve the equation shown by the model.
   
    A. x = -15 B. x = -3
    C. x = -4 D. x = -6
    Hint

  2.   Solve 75 = 25a.
    A. B. 3
    C. 100 D. 50
    Hint

  3.   African elephants can weigh up to 16,500 pounds. They weigh about 1.5 times more than Indian elephants. Use the equation 1.5w = 16,500 to find the weight of the Indian elephant.
    A. 12,500 lbs B. 11,000 lbs
    C. 8,250 lbs D. 14,000 lbs
    Hint

  4.   Solve 8z = 32.
    A. 4 B. 24
    C. 4 D. 24
    Hint

  5.   Solve 11r = 99.
    A. 9 B. -9
    C. 8 D. 11
    Hint



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