MATH please help

Find the equation of the trend line (line of best fit). show your work i'm using the points (34,76) (42,91)

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

I’m really confused and need your assist me with this question i’ve never been taught