The marketing department for a major manufacturer tracks sales and advertising expenditures each month. Data from the past nine months appear in the following table. What will sales in month 10 be if advertising expenditure in month 10 is $78,000 (i.e. a value of 78 in the table)? \begin{tabular}{lll} Month & \begin{tabular}{l} Sales \\ (units) \end{tabular} & \begin{tabular}{l} Advertising \\ (\$1,000) \end{tabular} \\ 1 & 86,010 & 25 \\ 2 & 134,697 & 40 \\ 3 & 202,025 & 65 \\ 4 & 141,180 & 45 \\ 5 & 217,086 & 70 \\ 6 & 178,399 & 55 \\ 7 & 156,975 & 50 \\ 8 & 113,155 & 35 \\ 9 & 191,901 & 60 \end{tabular} 272,039 242,039 252,039 262,039