Answer: it will take 5 weeks for both trees to be the sane height.
Step-by-step explanation:
Let x represent the number of weeks it will take the two plants to be the same height.
The first flower is 2 inches tall and it is growing 2.25 inches each week. This means that in x weeks, the height of the flower would be
2 + 2.25x
The second plant is 5.75 inches tall, and it is growing 1.5 inches each week. This means that in x weeks, the height of the flower would be
5.75 + 1.5x
For both flowers to be the same height, the number of weeks would be
2 + 2.25x = 5.75 + 1.5x
2.25x - 1.5x = 5.75 - 2
0.75x = 3.75
x = 3.75/0.75
x = 5
