A brand manager for a certain company must determine how much time to allocate between radio and television advertising during the next month. Market research has provided estimates of the audience exposure for each minute of advertising in each medium, which it would like to maximize. Costs per minute of advertising are also known, and the manager has a limited budget of $30,000. The manager has decided that because television ads have been found to be much more effective than radio ads, at least 75% of the time should be allocated to television. Use the following data to complete parts a and b.

Please help with part b!

brand managot for a certain compary must determine how much teme to allocate besween radio and television advertsing during the next month. Market research has provided esfimates audience exposure for each minute of advertising in each medum, which it would like to maximize. Costs per minute of advertising are also known, and the manager has a imited budget of $90,000. The manager has decided that because television ads have been found to bo much more effective than faclo ads, at least 75%5 of the time should be alocaled to television. Use the following data to complete parts a and b. A. Maimizo the mumber of ads by adding the number of radio ads to the number of TV adt. 8. Minimize ime spent by adding the uime spent on rado ads to the trow spent on TV ads C. Minimize cost by adding the total cost of radio ads to the total cost of TV ads. D. Maximize exposure by adding the exposure trom radio ads to the euposure from TV ads. Wentify the constraints in simple verted expressions. Select all that apply 1. The moriey spent on the rado ads plus the money spent on TV ads cannot be more than the limilied budget. B. The limited budget must be greater than or equal to the average cost per minute of ads mulipted by the sum of the minutes spent on radio adis and the minules spent on TV ads. c. The number of TV ads and radio ads cannot be negative. D. Time spent on TV ads must be at leas 75% of the time spent on radio ads Time spent on TV ads munt be at least 75% of the total time spent on ast. b. Mathemascally formulate a Inear optimizabion mocel. (Tye indegers or decrews. Do not round. Do net indude the 5 symbolin your answers)