Final answer:
The expressions 1/300p, 0.03p, 0.3p, and 3p are each considered to be simplified already, because there are no like terms to combine or further arithmetic to do.
Step-by-step explanation:
The given expressions are essentially multiplications of a number (coefficient) and a variable (p). A simplified expression would be one in which the coefficient is put in the simplest form. However, note that in mathematics, the term 'simplify' is often subjective and dependent on context. Thus, without further specific instruction, we consider all of the given expressions already simplified:
A. 1/300p: This is a multiplication of 1/300 and p. There are no like terms to combine, or further arithmetic to do, so it is considered simplified.
B. 0.03p: This is a multiplication of 0.03 and p. Again, there's nothing else to do, so it is considered simplified.
C. 0.3p: This is the multiplication of 0.3 and p. Without other terms to combine with or perform arithmetic on, it is considered simplified.
D. 3p: This is the multiplication of 3 and p. As the others, it is also considered simplified.
Learn more about Simplifying Expressions