42 is 21% of what number

What is the smallest integer n such that n\sqrt{2} is greater than 20

What is the total area of the figure?

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.