Answer:
The largest number of trees that she can have in a row is 20.
Explanation:
Elizabeth has 140 citrus trees and 180 palm trees.
As we have to find the largest number of trees that Elizabeth can have in a row, we will find the GCF or greatest common factor.
140 = 2 x 2 x 5 x 7
180 = 2 x 2 x 3 x 3 x 5
Greatest common factor is = 2 x 2 x 5 = 20
Therefore, the largest number of trees that she can have in a row is 20.