the mulraneys hired a contractor to build an addition to their home. the contractor proposed a rectangular room with a perimeter of 50 feet. the mulraneys asked the contractor to change the perimeter to 60 feet by increasing both the length and the width by the same distance. by how many feet did the mulraneys ask the contractor to increase the length of the room?

Tom travels between the two mile markers shown and then finds his average speed in miles per hour. select the three equations that represent this situation.

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.

Abox of chocolates cost $7 which equation relates the number of boxes sold parentheses x parentheses and total cost of the boxes sold parentheses y parentheses