3x+12 classify polynomials by degree and number of terms

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!

Simply 8x squared + 5(7x squared- x) - 2x =

What is not true about kl and mn? what is mn? (show )