The Cost of Manufacturing X Units Is C Dollars, Where $\sqrt { x }$

Short Answer

The cost of manufacturing x units is C dollars, where C = 4x + 6 $\sqrt { x }$ + 5. Weekly production at t weeks from the present is estimated to be x = 2800 + 100t units when t = 8. Find the time rate of change of cost, $\frac { \mathrm { dC } } { \mathrm { dt } }$ . Enter just an integer.