1. 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?   7cd/100   cd/750   15cd/100   cd/100   3cd/40   Hint Hint       2. What is the smallest of four consecutive odd integers whose sum is 968?   235   239   243   245   249   Hint       3. 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       4. 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?   3/5   1   7/3   3/7   5/3   Hint       5. If x + y − z = 5 and x − y + z = 10, which of the following statements MUST be true? I. y > z II. x > 5 III. y > 5   I only   II only   III only   I and II only   II and III only   Hint       6. Which of the following is not equivalent to 4/5?   80/100   40%   400/500   0.8   40/50   Hint       7. An agent receives a commission of 40 cents for every $50 of business she procures. What percent is the agent's commission?   0.8%   1.0%   1.25%   1.5%   2.5%   Hint