1. A car's price decreased by 20% from 1998 to 2000. If the price of the car was P dollars in 2000, what was it in 1998?   0.75P   0.8P   1.2P   1.4P   1.25P   Hint Hint       2. A quiz consists of true and false questions. The ratio of the number of true questions to the number of false questions is 4:3. About what percent of the questions are false?   43%   57%   67%   83%   86%   Hint       3. Which of the following is not equivalent to 4/5?   0.8   400/500   40/50   40%   80/100   Hint       4. What is the smallest prime factor of 1001?   3   5   7   11   13   Hint       5. The arithmetic mean (average) of five numbers is −5. If the sum of two of them is 50, what is the average of the other three?   25   10   0   −10   −25   Hint       6. If 2z2 − 5z + 30 < 2z2 + 5z − 15, which of the following MUST be true?   z = 4.5   z > 4.5   z < 4.5   z = 6   z > 6   Hint       7. The arithmetic mean (average) of 3, 5, 7 and y is 100. What is the value of y?   85   95   105   115   385   Hint