Final answer:
To represent Emily's number, we can start with the number n, then find one-fourth of that number by dividing it by 4. Emily subtracts 3 from one-fourth of the number, which can be represented as n/4 - 3.
Step-by-step explanation:
To represent Emily's number, we can start with the number n, then find one-fourth of that number by dividing it by 4. This can be written as n/4. Finally, Emily subtracts 3 from one-fourth of the number, which can be represented as n/4 - 3. Therefore, the expression to represent Emily's number is n/4 - 3.