Final answer:
To find the equivalent expression for the perimeter of a square with a side length of n - 1.5, multiply the side length by 4, resulting in the expression 4n - 6.
Step-by-step explanation:
The student has been asked to find equivalent expressions for the perimeter of a square whose side length is represented by the expression n - 1.5. Since the perimeter of a square is the sum of all its sides, we know that the perimeter (P) is equal to 4 times one side of the square.
So, the perimeter P of the square is:
P = 4 × (n - 1.5)
This expression can be expanded to:
P = 4n - 6
Therefore, 4n - 6 is an equivalent expression for the perimeter of the square.