Use This Information to Answer the Following Questions -Refer to the Table Above

Use this information to answer the following questions.
The following data were collected on annual revenues (millions)and the number of slot machines in a Las Vegas casino from 1995 to 2005.
$$\begin{array} { l c c } \text { Year } & \text { Annual Revenues } & \text { Number of SlotMachines } \\1995 & 4 & 35 \\1996 & 6 & 40 \\1997 & 7 & 45 \\1998 & 8 & 50 \\1999 & 6.8 & 55 \\2000 & 8.8 & 60 \\2001 & 9 & 65 \\2002 & 10 & 70 \\2003 & 13 & 75 \\2004 & 12 & 75 \\2005 & 13 & 75\end{array}$$
-Refer to the table above.
a.Develop a regression model to predict annual revenues based on the number of slot machines.
b.Use the estimated regression model to predict annual revenues with 80 slot machines.