Brainliest + points ( explain)

calculate the total payback for a $2,500 loan at 9% annual interest for two years.

use the formula,
m
=
p
m
(
1
+
m
)
n
a
(
1
+
m
)
n
a
−
1
as needed.

a.
$1,021.80

b.
$1,370.52

c.
$2,043.60

d.
$2,741.04

$2970.25

Step-by-step explanation:

Please write the formula all on one line:

M = P(1 + r)^n, where P is the principal, r is the annual interest rate as a decimal fraction and n is the number of years.

Here, that comes to:

M = $2,500(1 + 0.09)^2, or

    = $2,500 (1.09)^2, or

M   = $2,500(1.1881), or

M = $2970.25.

$2970.25 will be needed to pay back this $2,500 loan.

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.