Select the positive or negative integer for the situation. Mrs. Dunn deposited $1500 at the bank.

integer:
1500
- 1500

1500

Step-by-step explanation:

deposit means put in and withdraw means take

-1500 I would assume

Step-by-step explanation:

a deposited is a person putting money into the bank. so I am saying -1500 because mrs. Dunn is putting her money away. so she would have $0 in her pocket

how long did the flood last

step-by-step explanation:

then i will answer

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.