Question $5(5$ points$)$

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$)?$

$\backslash$table$[[,\backslash$table$[[$Sales$],[($units$)]],\backslash$table$[[$Ad$],[($$$1]]],[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],[,,],[,,],[,,],[,,]]$