The following table shows retail sales in drug stores in billions of dollars in the U.S. for years since 1995.

Year Retail Sales
0 85.851
3 108.426
6 141.781
9 169.256
12 202.297
15 222.266


Let
be the retails sales in billions of dollars in t years since 1995. A linear model for the data is F(t)= 9.44 t +84.182.
Use the above scatter plot to decide whether the linear model fits the data well.
The function is not a good model for the data
The function is a good model for the data.
Estimate the retails sales in the U. S. in 2016.
billions of dollars.
Use the model to predict the year that corresponds to retails sales of $241 billion.