According to a 2009 reader's digest article, people throw away about 14% of what they buy at the grocery store. assume this is the true proportion and you plan to randomly survey 71 grocery shoppers to investigate their behavior. what is the probability that the sample proportion does not exceed 0.13?

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? will mark the

Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.

Roger could feed 5 walruses with 4 kilograms of fish. how many walruses could he feed with 7.2 kilograms of fish?