One lap around a track is equal to 1/4 of a mile. a horse ran a distance of 9 laps in 2 minutes 30 seconds. what was the horses average speed in miles per minute

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