Question

Question 1 of 8Which of the following math statements contain variable(s)? Check all thatapply.O A. 11 - x= 9B. 4 + 6 = 10O C. 6 - 6 = 0D. ? + 1 = 5

Answer 1

Remember that variables are unknown quantities usually represented by letters.

Having said that, the expressions containing variables are A, and D.