Greg budgeted carefully and by the time he turned 30 his retirement account balance was $22,000. If
that amount grew at a rate of 10% per year, how much would be in the account when he retired at age
65?

We have been given that Greg budgeted carefully and by the time he turned 30 his retirement account balance was $22,000. We are asked to find the amount in Greg's account after 60 years if the amount grew at a rate of 10% per year.

We will use exponential growth function to solve our given problem.

, where,

y = Final amount after t years,

a = Initial amount,

r = Growth rate in decimal form,

x = Time.

Therefore, there will be approximately $618,253.6 in Greg's account.

introduction, methodology, results, discussion

step-by-step explanation:

an observational study is one which consists of actual observation to record data and then analyse the data.

there are a number of factors that should be analyzed before starting an observational study.

the main four factors are:

i) introduction:   this should be analysed to check whether the purpose of the study is correctly established and the data recorded are appropriate for the study

methodology:   the method of collecting the data, such as whether randomly selected, and whether sample size matches with the population to be studied, whether questions asked are easy to answer by common men, etc.

results: then results such as summary of data with comments should be studied thoroughly

discussion:   the last is the discussion, this can be either by management people or persons who are all interested , etc.