please help im confused as to where to start

SPREADSHEET MODELING FOR BUSINESS ANALYSIS The Problem An international coflee cempany has $100,000 to 4 pend on adverthing in four markets. Each market responds diflerently to advertising. Based ch observations of each market's response to several advertialing initiatives, the company has estmated the rales response by fteling a power curve R=axt, where R represents sales revenue and x represents advertalng dollars, beth measured in thousends. The entlmated curves are deveribed in the follewing tablo: Deternine hew the adverthing dellars should be allocated to the four marlicts so that the sales revenue is maimbed. Plase firt describe your cotmination medel R.e, what are the ebjoctive functice, dechlon vartables and censtrainta) and then repert the optimal soluelen, [(5 points) b. If the cempany had 55,000 of additional funde in advertaing budget, by new much could the fotat revenue be increased? [t point] c. If the company had $10,000 of adducienal funds in the advertiling bulget beyond the bese case in part (o), by how much could total rewenue be increased? [1 point]