Hi! I have the answer key to this- but having some problems working through a lot of these questions. If someone could help with how to work through these problems, it'd be greatly appreciated. Thanks in advance!

Test 2 Practice

For problem 1

a)Identify the independent and dependent variables

b)Determine the linear or exponential model

c)Answer the question(s)

1.The population of Happy Town is growing at a rate of 5% per year. In 2000, there are 100 people in Happy Town, how many live there in 2020?