Answer: option 2 is the correct answer.
Explanation:
The crew worked for 14 days in total. If each worker was paid at a rate of $90 per day, it means that the amount earned by each worker in 14 days would be
14 × 90 = $1260
The total number of workers that were hired by the city to clean up the streets of the city was 100. Therefore, the total labor cost for the city would be
1260 × 100 = $126000