Answer
$h(t) = \frac{p(t)}{n(t)}= \frac{d(t) + c(t)}{n(t)}$
Work Step by Step
p(t)=d(t) + c(t)
$h(t) = \frac{p(t)}{n(t)}= \frac{d(t) + c(t)}{n(t)}$
h(t) represents the number of cats and dogs per capita (per person in the year t+2000).
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