1. can't be determined cause no info given on the rate of which the population is growing.
2. can't be determined/not true because the initial population of a could be less than b.
3. can't be determined/not true because we don't have enough info to tell how fast they grow and decline.
Answer:
B
Step-by-step explanation:
The first term is - 9 and the common difference is 6.
Formula is - 9+(n-1)*6
267272718;27277282,727272?2727
The bird watcher saw 7 blue Jays?
