Solve Combined Variation Problems
-P Varies Directly as the Square $R$

Multiple Choice

Solve Combined Variation Problems
-P varies directly as the square of $R$ and inversely as the cube of $S$ .

A) $\mathrm { P } = \frac { \mathrm { kR } ^ { 2 } } { \mathrm {~s} ^ { 3 } }$
B) $P R ^ { 2 } S ^ { 3 } = k$
C) $\mathrm { P } = \frac { \mathrm { kS } ^ { 3 } } { \mathrm { R } ^ { 2 } }$
D) $P + R ^ { 2 } - S ^ { 3 } = k$