Write an equivalent expression. (X + 8) + 3y W Choose the correct answer below. OA. (X + 8) + 3y = x(8 + 3y) OB. (X + 8) + 3y = 8 - (x + 3y) OC. (X + 8) + 3y = 3(X + 8) + y OD. (X + 8) + 3y = x + (8 + 3y)​

Now, martin can reasonably guess that the standard deviation for the entire population of people at the mall during the time of the survey is $1.50. what is the 95% confidence interval about the sample mean? interpret what this means in the context of the situation where 95 people were surveyed and the sample mean is $8. use the information in this resource to construct the confidence interval.