it's approximately 90 seconds for the average person to brush his or her teeth if a person brushes their teeth twice daily approximately how much time does one person spend brushing their teeth in a year

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

Answer asap! due in 30 minutes! ! 8th grade math

The sum of two consecutive mile markers on the interstate is 417417. find the numbers on the markers