A solid cube has a density of 3 ounces per cubic inch. Which is closest to the side length (in inches) of the cube if its mass is 80 ounces?

Matt and brian were solving a system of equations. they both noticed that the two lines had the same slope. brian said that because each line in the system had the same slope, the two lines had to be parallel, which meant the solution to the system was "no solution" matt disagreed, and said they should also look at the y-intercepts before determining how many solutions there were. who is correct?

Which of the following is the result of expanding

Which expression is not a polynomial?