Ill rate you the brainliest if right ! in the expression 3x2y + 4x – 5x2y, are the terms 3x2y and –5x2y like terms? explain by providing support for your answer.

Use addition and subtraction to simplify the following polynomials. a. add polynomials: (3 – 4x + 8x^2) + (–6 + 2x – 5x^2) step 1: rewrite the polynomials without the parentheses. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial. b. subtract polynomials: (3x – 5 – 7x^2) – (–2 + 6x^2 – 5x) step 1: rewrite the polynomials without the parentheses. remember to multiply each term in the second parentheses by –1. show your work. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial.

The measure of one angle of an octagon is two times smaller that of the other seven angles. what is the measure of each angle?

Acircle has a circumference of 28.36 units what is the diameter of the circle