Answer:
3 corn plants
Step-by-step explanation:
Here, we want to select the number of corn plants that had roots between 3 and 4 feet dee
To select this number, we need to look at the roots which growth feet are a fraction lying between 3 and 4
These roots from the question are;
3.45 , 3.86 , 3 2/5
So three corn plants had roots between 3 and 4 feet deep