Answer: A,C,D,E
Explanation:
If own edge answer Which statements are true? Select all that apply. 
You can replace “a number” with a variable to represent an unknown value. 
You can replace “difference” with a division sign. 
You can replace “difference” with a subtraction sign. 
You can replace “seven” with 7. 
The correct expression is n – 7. 
The correct expression is 7 – n. Answer: A,C,D,E. Your welcome.