Solve the Problem $\mathrm { P } ( \mathrm { d } ) = 1 + \frac { \mathrm { d } } { 33 }$

Multiple Choice

Solve the problem.
-The function $\mathrm { P } ( \mathrm { d } ) = 1 + \frac { \mathrm { d } } { 33 }$ gives the pressure, in atmospheres (atm) , at a depth $\mathrm { d }$ feet in the sea. Find the pressure at 30 feet.

A) $\frac { 21 } { 11 } \mathrm {~atm}$
B) $\frac { 1 } { 11 } a t m$
C) $\frac { 10 } { 11 }$ atm
D) $\frac { 31 } { 33 } \mathrm {~atm}$