Cameron and Casey go out to lunch. If their food and beverages cost a total of $22.50, and there is 9% meals tax, how much is the bill after the tax is added? Label your answer.

$24.525

Step-by-step explanation:

Given data

cost = $22.5

tax = 9%

Required

The amount of the tax2.025 and the cost of food together

Let us compute 9% of 22.5

=9/100*22.5

=0.09*22.5

=$2.025

Hence the bill is 22.5+2.025

=$24.525

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.