A study was conducted to analyze the growth of a plant species over a 4-week period. The height of the plants was measured weekly, and the data collected is shown in the table below:
Week | Height (cm) |
---|---|
1 | 15 |
2 | 20 |
3 | 30 |
4 | 45 |
Based on the table, what was the height of the plants after 3 weeks?