Use the Cost Equation $C = 2100 + 0.08 x + 0.004 x ^ { 2 }$

Multiple Choice

Use the cost equation $C = 2100 + 0.08 x + 0.004 x ^ { 2 }$ to find the number of units x that a manufacturer can produce when $C = 2600$ . Round answer to the nearest whole unit.

A) 365 units
B) 357 units
C) 344 units
D) 336 units
E) 330 units