## College Algebra (10th Edition)

$R(x)=\displaystyle\frac{L(x)}{P(x)}$
We express the sentence as an equation: $\displaystyle Participation\ rate(R)=\frac{size\ of\ labor\ force(L)}{civilian\ population(P)}$ $R(x)=\displaystyle\frac{L(x)}{P(x)}$