PLEASE help me do this I only need # 8 10 12 19 21 and 22 done (DONT JUST TYPE A RANDOM ANSWER TO GET POINTS)

At the newest animated movie, for every 9 children, there are 4 adults. there are a total of 39 children and adults at the movie.

Its worth 10000000 points need asap if you answer correctly ill mark brainliest

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 25, a standard deviation of 2.5, and margin of error of 5%