CLO-5 The manager of a company that produces graphing calculators determines that when thousand calculators are produced, they will all be sold when the price is 800 0429 PL) dollars per calculator. At what rate is demand plx) changing with respect to the level of production when 3000 (x = 3) calculators are produced? 4.03 dollars per thousand calculators 0 -4.03 dollars per thousand calculators 12.09 dollars per thousand calculators 0.12.09 dollars per thousand calculators