Help mme math angle relationships

What is the value of the expression 9+n/3-6 when n = 12? 1. 5. 7. 12.

Select the correct answer from each drop-down menu. consider the following polynomials equations. 3x^2(x-1) and -3x^3+ 4x^2-2x+1 perform each operation and determine if the result is a polynomial. is the result of a + b a polynomial? yes or no is the result of a - b a polynomial? yes or no is the result of a · b a polynomial? yes or no

Find │7│. a. 1 over 7 b. –7 c. 7 asap i always mark brailiest who me so