Righetti Homes, a custom home bulder in Arizona, 8 cutrenty offering three modeis in a newly developed residental neightorhood in Scottsdsle. The accompanying Specs workekeet includes the information about the three models, including seling prices. material costs, labor costs, buyer incentives (percent of the selling price), and average buyer upgrades (percent of the selling price). Righetil Homes plans to buld 50 homes in the neighoorhood, and it would like to estimate its total sales and profts in the new residential neighborhood. Click bere foc the Excel Data File. a. Bulld a spreadsheet model to heip Righets Homes estimate its total soles and profits in the new residential neighborhood if Righett Homes builds 10 Model A homes, what. are the total soles, costs, and profits for these homes? Based on incial market analysis, Righetti Homes peojects that it wal buld is model A homes, 25 model 8 homes, and 20 model C homes. What are the fotal salps and profits for Righetti Homes for the neighborhood