The population of an organism in a place increases according tothe growth model
exponential. One week ago, the population of these organisms was1000. Currently, the population becomes 1500.

a) The doubling time of the growth of these organisms is ...

b)The population of these organisms in the next week isapproximately...

c)The population of these organisms reaches 5000 in ...days

(b) and (c) answers can bea decimal number