The populations of two cities are described below. For each city, write a function that models the population in thousands, using the input $t$ to represent years.

1. “The population of the city started at $75000$ and was increasing by $4.6\%$ per year.”
   Answer: $P(t) =$
2. “The population of the city started at $6500$ and was decreasing by $3\%$ per year.”
   Answer: $P(t) =$