On January 4, 1984 the price of a widget was $18.54. On January 4, 1991 the price of a widget was $98.92. Find the average rate of change in the price of a widget from 1984 to 1991. Round to the nearest cent.

The average rate of change is $LaTeX: \displaystyle \frac{98.92-18.54}{1991-1984}= 11.48$ dollars per year.