Help ASAP please! ill mark brainliest if correct

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.

Which of the following circles have their centers in the third quadrant?

Convert the density of surface sea water to metric tons/cubic meter