In $1991,$ the moose population in a park was measured to be $3930.$ By $1996,$ the population was measured again to be $3630.$ If the population continues to change linearly:

Find a formula for the moose population, $P,$ in terms of $t,$ the years since $1990.$

$P(t)=$

What does your model predict the moose population to be in $2003?$