Help with this question plz

What is the area of mnp? 40 m2 60 m2 68 m2 127.5 m2

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

Which radical expression is a rational number? a. √ 360 b. √ 644 c. √ 225 d. √ 122