Final answer:
While all answer choices given (12, 64, 1/12, 1/64) are positive, the complete expression is required to determine if any transformation is needed to present the expression in a positive form.
Step-by-step explanation:
The question posed is about identifying the positive form of a given expression. The answer choices are: A. 12, B. 64, C. 1/12, D. 1/64. Without additional context, all of these values are already in their positive form, as none of them is negative. Therefore, if the question refers to taking the absolute value or simply choosing the options that are already positive, then all the provided answer choices show the positive form of the numbers presented.
However, if the question implies a different expression that these values are being compared to, additional information would be required to accurately determine the positive form of the expression in question. It's important to carefully consider the terms of an algebraic expression, as multiplication or division rules can affect the sign of the result.
When working with numbers and expressions in mathematics, remember that multiplying or dividing two positive numbers will always result in a positive number, as indicated by the practice noted that "When two positive numbers multiply, the answer has a +ve sign, e.g., 2x3 = 6." Similarly, multiplying two negative numbers together will also result in a positive number.