A construction company can build 180 feet of fence in 6 days...

Question Analysis
This question evaluates the student's ability to set up and solve a proportion problem involving construction work.

Key Concept Explanation
Proportions are used to compare two ratios and find an unknown value. In this case, the ratio of feet of fence built to days worked is used to find the time needed to build a different length of fence.

Step-by-step Solution
1. Set up the proportion:
2. Cross-multiply: