A square field is 40m long. what is the lenght of wall which is constructed around it?​

Draw out the fraction then show how you would subtract 5 1/4

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.