Answer:
As all even square numbers are divisible by 4, the even numbers of the form 4n + 2 are not square numbers. As all odd square numbers are of the form 4n + 1, the odd numbers of the form 4n + 3 are not square numbers.
9
Step-by-step explanation:
9 is a square number, since it can be written as 3 × 3.
225
75/100×300=225
