The Weekly Cost C of Producing Units X in a Manufacturing

Multiple Choice

The weekly cost C of producing units x in a manufacturing process is given by $C ( x ) = 30 x + 750$ .The number of units x produced in t hours is given by $x ( t ) = 70 t$ . ​
Find the cost of the units produced in 6 hours.
​

A) 11,855
B) 11,850
C) 11,846
D) 13,350
E) 11,854