One side of a rectangle has length 9. Another side has length 3 +7. What expression represents the area of the rectangle? 9x3+9X7
9x3
9x7
9x3x7
Which expression below represents the area of the rectangle?
O A. 9x3x7
OB. 9x3+9x7
OC. 9x7
OD. 9x3

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.