Answer: 6 months
Step-by-step explanation:
1. If the first plant has an initial height of 3 inches and grows at a constant rate of 2 inches each month, you can write the following expression:
Where h is the height and m is tshe number of months.
2. The constant rate of growth of the second plant is:
3. Then, the expression is:
4. Equal both equations and solve for m:
5. Therefore, the plants have the same height after 6 months.