URGENT

please help this is worth 25 points

What is the difference between the equations of a vertical and a horizontal line?

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.

Apackage of five erasers cost 0. $.39 at this rate how many how much would 60 erasers cost in dollars and cents