What are the common multiples of 270 and 450? And what is the LCM(Least Common Multiple) of 270 and 450?

Solve each quadratic equation by factoring and using the zero product property. [tex]x^2+6x+8=0[/tex]

Jon’s weight loss for each week of the month is 5 lbs., 2.5 lbs., and 2.5 lbs. he gained 3.5 lbs. the last week. if jon originally weighed 198 lbs., how much does he weigh now?

Ratio of circumference to diameter example plz i need to now what it looks like.