Abrother and a sister are in the same math class. there are 8 boys and 20 girls in the class. one boy and one girl are randomly chosen. what is the probability that the brother and sister are chosen? write your answer as a fraction in simplest form.

Which of the following represents the factorization of the trinomial below? x^2+7x-30

James wants to promote his band on the internet. site a offers website hosting for $4.95 per month with a $49.95 startup fee. site b offers website hosting for $9.95 per month with no startup fee. for how many months would james need to keep the website for site a to be a better choice than site b?

Dawn is selling her mp3 player for 3 4 of the original price. the original price for the mp3 player was $40. how much is she selling her mp3 player for?