I need help on my quiz

Matheman, Quiz 1.4 - TS Numerical Response A population of animals is growing at a rate of 7% per year and the growth can be 1. modelled by the function P( t ) = P. (c). If t represents time in years, the value of c is Hint: The population starts at 100%. 4. A biologist estimates there are 500 animals of a certain species in a particular region. He expects the function P( t ) = 500(0.9 )20 to model the future population of the species, where P(t ) is the population t years after the initial count. The domain of the model function is A. 120 B. 1>0 C. 0