Look at the polynomials shown below. (3x^4+5x^3–x) and (3x^3–x^2+x)
A. Explain how to find the sum and the difference between the polynomials. Show your work.

Apinhole camera is made out of a light-tight box with a piece of film attached to one side and pinhole on the opposite side. the optimum diameter d(in millimeters) of the pinhole can be modeled by d=1.9[ (5.5 x 10^-4) l) ] ^1/2, where l is the length of the camera box (in millimeters). what is the optimum diameter for a pinhole camera if the camera box has a length of 10 centimeters

Kira looked through online census information to determine the overage number of people living in the homes in her city what is true about kira's data collection?

What is the solution to this system of equations? y= 2x - 3.5 x - 2y = -14