A survey of 400 randomly selected homes from a large city with over 30,000 homes showed that 16 of the sampled homes didn't have a television.
Based on this sample, which of the following is a 95% confidence interval for the proportion of homes in
this city that don't have a television?

Sarah took the advertising department from her company on a round trip to meet with a potential client. including sarah a total of 11 people took the trip. she was able to purchase coach tickets for $280 and first class tickets for $1280. she used her total budget for airfare for the trip, which was $6080. how many first class tickets did she buy? how many coach tickets did she buy?

Alex took his brother to a birthday party. the party was scheduled to last for 1 and 3/4 hours but they stayed for 4/5 of an hour more. how long did she stay at the party?

Find the root(s) of f (x) = (x- 6)2(x + 2)2.