Please solve b part $.$ Urgent please.

Campbell Woodcraft Company manufactures "antique" wooden cabinets to house modern televisions. The Company began operations in January of last year. Sidney Myrick, the owner, asks for your assistance. He believes that he needs to better understand the cost of the cabinets for pricing purposes. You have collected the following data concerning actual production over the past year:

$\backslash$table$[[,\backslash$table$[[$Number of$],[$Cabinets$],[$Produced$]],$Total Cost$],[$Month$,800,$$$22,000$