1. The cost of airing a commercial on television is modeled by the function
c(n) = 80n + 1500, where nis the number of times the commercial is aired. Based on this model,
which statement is true?
A. The commercial costs $1580 to produce and can air an unlimited number of times
B. The commercial costs $1500 to produce and $80 each time it is aired
C. The commercial costs $80 to produce and $1500 each time it is aired
D. The commercial costs $0 to produce and $80 per airing up to $1500

it is probably the graph on the bottom right.

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.

hi how are you doing today? if you ever need just tell me

step-by-step explanation: