If the area of the shaded part of N is 19/6π, what is the value of x? (PLEASE HELP)

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.

Write the equation in logarithmic form e^x=403.429

With number 11 ( show how you got the answer)