Rosie went on a hiking trip. The first day she walked 181818 kilometers. Each day since, she walked 90\%90%90, percent of what she walked the day before.
What is the total distance Rosie has traveled by the end of the 10^\text{th}10
th
10, start superscript, start text, t, h, end text, end superscript day?
Round your final answer to the nearest kilometer.

117 km if you want me to explain let me know

IF I GOT THIS RIGHT CAN YOU PLZ GIVE BRAINLEST :)

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.