What scale factor is shown in the graph?
Picture below
1/2
- 1/2
2
-2

if you are saying purchasing 3 social media ads and one newspaper ad counts as one purchase then there are:

6 purchases

if you are asking how many of each then:

18 social media ads

6 newspaper ads

a variable is any characteristics, number, or quantity that can be measured or counted. a variable may also be called a data item. hope i !