The marketing department ofa company has determined that if it spends x thousands of dollars on radio advertisements and y thousand dollars on newspaper advertisements, the company's revenue (in thousands of dollars) will be ' R(:z:, y) = ' 0.08352 100;,2 + 53; + 4y + 4mg How much money ShOU'd this company spend on radio advertisements and newspaper advertisements to maximize its revenue? Radio: $ Newspaper: S ,.___