I need help solving this problem??

What could explain what happened when the time was equal to 120 minutes

Henry is an avid reader, he devours 90 pages in half an hour how many pages has henry read per minute?

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