Profit is the difference between

Profit is maximized at the output at which marginal revenue exceeds marginal cost by the greatest margin. Total profit is represented by the vertical distance between a total revenue curve and a total cost curve.

Step-by-step explanation:

profit is the difference between costs and  income, there is a difference between accountping profit and economic profit

Step-by-step explanation:

The word profit mean= financial  gain and advantages

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.

the answer will be b x² +x-1

step-by-step explanation: