Matthew has already baked 7 cakes, and he can bake 1 cake with each additional stick of butter he buys. How many additional sticks of butter does Matthew need in order to bake a
total of 31 cakes?

Alina fully simplifies this polynomial and then writes it in standard form. xy2 – 2x2y + 3y3 – 6x2y + 4xy2 if alina wrote the last term as 3y3, which must be the first term of her polynomial in standard form? xy2 5xy2 –8x2y –2x2y