The report "undergraduate students and credit cards in 2004: an analysis of usage rates and trends" (nellie mae, may 2005) estimated that 21% of undergraduates with credit cards pay them off each month and that the average outstanding balance on undergraduates’ credit cards is $2169. these estimates were based on an online survey that was sent to 1260 students. responses were received from 132 of these students. is it reasonable to generalize the reported estimates to the population of all undergraduate students? address at least two possible sources of bias in your answer.

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? define a variable for the situation. write an inequality that represents the situation. solve the inequality to find out how many months he needs to keep the website for site a to be less expensive than site b. using words, describe how many months he needs to keep the website for site a to be less expensive than site b.

The table represents a function. what is f(-2)? a.-3 b. -1 c.1 d.3

Lucy is a dress maker. she sews \dfrac47 7 4 of a dress in \dfrac34 4 3 hour. lucy sews at a constant rate. at this rate, how many dresses does lucy sew in one hour? include fractions of dresses if applicable