### Application of derivatives

Find the number of units x that produce a maximum revinue R. R=800x-0.2x^2 R=48x^2-0.2x^3 Find the number of unites x that produce the minimum average cost per unit C. C=1.25x^2+25x+8000 C=0.001x^3+5x+250 find the amounts of advertising that maximizes the profit P. (s and p are measeured in thousands