Tcr's and corporations yearly sales numbers and model by the equation as equals 2.6 x -4 squared +12.3 were exes in months and sells the millions of dollars what is the lowest sales of the number of tcr‘s and corporations yearly sales numbers are model by the equation s equals 2.6 x -4 squared +12.3 with exes in months and sells the millions of dollars what is the lowest sales of the number of year