The table shows the ratio between the number of packets and the number of seeds of a certain plant contained in them: Which graph shows equivalent ratios?

(B)/the second graph

Step-by-step explanation:

The given chart has a ratio of 1:3.

5:15 --> 1:3

6:18 --> 1:3

7:21 --> 1:3

Therefore, the graph must show this 1:3 ratio. For every 1 unit you plot in the x-axis, you must go up 3 in the y-axis. So the graph with the plots (1,3), (2,6), (3,9) will be your answer.

Hope this helps! :)

1760 kilometers

step-by-step explanation:

multiply the amount of time the plane took to travel by it's speed

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.