In a survey of 800 parents 632 said that music education has a positive effect on academic performance. estimate the sample size needed so that a 95% confidence interval will have a margin of error of 0.025

Aflute is on sale for 20% off. including the discount and 8% tax, the sales price is $216.

Bella want to know what the students at her school think of her show. which is the best group to survey to find this information a. go to the mall and ask all of the students she recognizes from school b. ask her viewers to call in durning an episode of the show c. get a list of students at her school from the office and use a random number generator to pick 30 of them d. get a list of students at her school from the office and pick the first 30 students on the list

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)