The volume of a cube is 343 cubic yards what is the length of the cube

Neveah and clint are baking muffins for the bake sale. they need to bake 30 muffins for their display case. clint has baked 4 so far, and neveah has baked 7. how many muffins (m) do they have left to bake? show your work!

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?

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).