Which expression is represented by the phrase "the square of m decreased by the quotient of 42 and 7?

Which of the binomials below is a factor of this trinominal? x^2-13+30

Atheater wants to build movable steps that they can use to go on and off the stage. they want the steps to have enough space inside so they can also be used to store props. how much space is inside the steps?

Ineed with math stuff it involves graphs