ות A dock is 7 3/4m high. The portion of the dock above water one day was measured at 2 2/5m high.
How much of the dock structure was above water that day?

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