Peter billington stereo, inc., supplies car radios to auto manufacturers and is going to open a new plant. the company is undecided between detroit and dallas as the site. the fixed costs in dallas are lower due to cheaper land costs, but the variable costs in dallas are higher because shipping distances would increase.   dallas detroit fixed costs $ 560,000 $ 840 ,000 variable costs $ 30/radio $ 21/radio a) based on the analysis of the volume, after rounding the numbers to the nearest whole number, dallas is best below and detroit is best above: