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. The arithmetic mean (average) of 3, 5, 7 and y is 100. What is the value of y?   85   95   105   115   385   Hint       3. Jack is now 7 times as old as Jill. If 10 years from now, he will be 3 times as old as Jill, how old is Jack now?   14   21   28   35   42   Hint       4. What is the smallest of four consecutive odd integers whose sum is 968?   235   239   243   245   249   Hint       5. From 1999 to 2000, the computer sales increased by 40% and the printer sales decreased by 40%. The ratio of printer sales to computer sales in 2000 was how many times the ratio of printer sales to computer sales in 1999?   5/3   3/5   7/3   1   3/7   Hint       6. 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   3cd/40   15cd/100   cd/100   7cd/100   Hint       7. If 2z2 − 5z + 30 < 2z2 + 5z − 15, which of the following MUST be true?   z = 4.5   z = 6   z < 4.5   z > 4.5   z > 6   Hint