What does PunionA mean?

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!

Find the roots of the equation below. x^2 - 6 + 9 = 0

Simplify 15(x - 4)(x -1)-3(x + 4)(x - 1) with steps