What are angle 4 and 7 classified it is 180 degree angle

12x + 1 = 25 solve the following equation. then place the correct number in the box provided.

At a sale this week, a desk is being sold for $213. this is a 29% discount from the original price. what is the original price?

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