1. An assembly line produces 12 bicycles per day over the course of five days. If production is increased to 24 bicycles per day, how many additional days will it take for average production to reach 19 bicycles per day?
2. A small business had an average weekly revenue of $14,000 over the past three weeks. The revenue for the first week was twice the revenue of the third week, and the revenue for the second week was half the revenue of the third week. What was the revenue for the first week?