Who is single out there

Pls brainliest will be awarded if answer is correct

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

Zahra runs a 500-meter race at a constant speed. which graph shows her distance from the finish line during the race?