### Instruction: A number x is multiplied by 7, and this product is then divided by 5. If the positive square root of the result of these two operations equals x, what is the value of x if x≠0 ?
Answer Choices: (A) 25/9 (B) 9/5 (C) 5/3 (D) 7/5 (E) 9/25.### Response: Let's think about the multi-choice question step by step.
sqrt(7x/5) to be perfect square x has to 7/5
The answer is D