Enter the degree of the polynomial below. 2x4 + x9 + 5x6 + 5x5 - 7x3 a. 9 b. 4 c. 2 d. 5

The correct answer is:  [A]:  "9 (nine) " .

Note:  We are asked to "enter the degree of the given polynonial".  This would be the exponent of the [variable with the HIGHEST EXPONENT VALUE within the polynomial] ; with in this case would refer to:  " x ⁹ " ;  

   →  So;  the answer is:  "9" {nine.}.