The government is auctioning off oil leases at tvvo sites. At each site. 150.000 acres of land are to be auctioned. Companies A. B. and C are bidding for the oil. Government rules state that no bidder can receive more than 60% of the total land being auctioned. Company A has bid $2000 per acre for site 1 land and $1000 per acre for site 2 land. Company B has bid $1200 per acre for site 1 land and $1800 per acre for site 2 land. Company C has bid $1500 per acre for site 1 land and $1900 per acre for site 2 land. In addition. site 2 land received by companyA cannot exceed 60% of the land received by company A. Also. site 1 land received by company B must be no lower than 30% of the land received by company B. Formulate a linear programming model to determine how the government can maximize the revenue. {Provide an algebraic model. do NOT use Excel. no need to solve the model}