Find f. Thats the question

What is the perimeter of a rectangular building that is 80 feet wide and 140 feet deep?

Ineed no it anyone can see this

Kayla made observations about the sellin price of a new brand of coffee that sold in the three different sized bags she recorded those observations in the following table 6 is $2.10 8 is $2.80 and 16 is to $5.60 use the relationship to predict the cost of a 20oz bag of coffee.