It was the first day of football practice. The ratio of running backs to linesmen at the practice was 5 to 4. If 40 running backs showed up, how many linesmen came to practice?

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