Ross-Simons Company has a monthly advertising budget of $75000. Their marketing department estimates that if they spend x dollars on newspaper advertising and y dollars on television advertising, then the monthly sales will be given by the following equation.

z = f(x, y) = 90x^0.8y^0.2

Determine how much money Ross-Simons should spend on newspaper ads and on television ads each month to maximize its monthly sales. (Give your answers correct to 2 decimal places.)