Final answer:
The expression p = 25 + 16x represents p in terms of x.
Step-by-step explanation:
The given equation relating the grams of potassium (Y) to the grams of fiber (X) per serving in enriched flour products is y = 25 + 16x.
Since we are given that p percent of an adult's daily allowance of potassium is provided by x servings of crunchy grain cereal per day, we can express p in terms of x by using the equation y = 25 + 16x. Since y represents the grams of potassium per serving, we can substitute p for y in the equation.
Therefore, the correct expression for p in terms of x is p = 25 + 16x.