1. 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 Hint       2. Which of the following is not equivalent to 4/5?   0.8   40/50   80/100   400/500   40%   Hint       3. A toy factory manufactures d dolls every hour. Each doll costs c cents. How many dollars will the factory spend in costs for manufacturing dolls in 7 hours and 30 minutes?   cd/750   cd/100   15cd/100   3cd/40   7cd/100   Hint       4. A small square region inside a larger square is shaded. The diagonal of the larger square is three times the diagonal of the small square in length. What fraction of the area of the larger square is not shaded ?   1/9   1/3   2/3   8/9   cannot be determined   Hint       5. What is 2% of 7%?   0.014%   0.09%   0.14%   1.4%   14%   Hint       6. What is z if 2.5% of z equals 75% of 50?   10   25   50   75   1500   Hint       7. If 2z2 − 5z + 30 < 2z2 + 5z − 15, which of the following MUST be true?   z = 6   z = 4.5   z > 6   z > 4.5   z < 4.5   Hint