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

  2.   Solve 5x = 40.
    A. 35 B. 8
    C. 6 D. 9
    Hint

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

  4.   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. 14,000 lbs B. 11,000 lbs
    C. 8,250 lbs D. 12,500 lbs
    Hint

  5.   Teresa is competing in a bicycle race which is 12 miles long. If her speed is an average of 3 miles per hour, how long will it take her to finish the race? Use the equation d = rt where d is the distance in miles, r is the average speed in miles per hour, and t is the time in hours.
    A. 2.5 hours B. 3.5 hours
    C. 4 hours D. 3 hours
    Hint



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