An art class plans to paint part of a rectangular wall in the cafeteria and leave the rest of the wall white, as
shown. The painted section will take up of the area of
the wall. What is x? Show your work.

Kylie explained that (-4x+9)^2 will result in a difference of squares because (-4x+9)^2 (-4x+9)^2 =(-4x)^2+(9)^2=16x^2+81

Write a polynomial function f of least degree that has rational coefficients, a leading coefficient of 1, and the given zeros. 3, 4+2i, 1+(sqrt)7 the answer is supposed to be: f(x)=x(^5)-13x(^4)+60x(^3)-82x(^2)-144x+360 what am i doing wrong?

The random variable x is defined as the number marking the sector in which the arrow lands when the spinner in the diagram is spun once.