Could I please get the answers for the following questions along with the method, and step by step guidance on how it is done in excel.

An auctioneer of antique and semi-antique Persian rugs kept record of his weekly auctions in order to determine the relationships among price (in British pounds, ), age of rug (in years), number of people attending the auction (variable Attendance Size) and the number of times the winning bidder had previously attended his auction (variable Previous Attendance). He felt that with this information he could plan his auctions better, serve his steady customers better and make a higher profit overall. The following is the data,

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