The Manager of Big Box Store Has Found That If $\mathrm { p } ( \mathrm { x } ) = 95 - \frac { \mathrm { x } } { 8 }$

Multiple Choice

The manager of big box store has found that if the price of a pillow is $\mathrm { p } ( \mathrm { x } ) = 95 - \frac { \mathrm { x } } { 8 }$ , then $\mathrm { x }$ pillows will be sold.
The expression for the total revenue from the sale of $x$ pillows is $R ( x ) = 95 x - \frac { x ^ { 2 } } { 8 }$ . Find the number of pillows that will produce maximum revenue.

A) 360 pillows
B) 420 pillows
C) 760 pillows
D) 380 pillows