A^4 - 8a^2 - 9x^2 - 12x+12 factorization step by step

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

If the cost to mail a package is an initial $5 and $0.28 for every pound the total cost to mail a package was $11.27, how much did the package weigh?

Polygon hh is a scaled copy of polygon gg using a scale factor of 1/4. polygon h's area is what fraction of polygon g's area?