Final answer:
The expression for the phrase 'the product of a number p and 5' is p * 5.
Step-by-step explanation:
The expression for the phrase 'the product of a number p and 5' is: p * 5
The phrase 'the product of a number p and 5' can be interpreted as multiplying the number p by 5. To show this mathematically, we use the multiplication symbol (*) to represent multiplication. So, the expression is p * 5.