An event manager recorded the number of people in different age groups that attended a music concert. which data table accurately represents the data in the histogram?

It's probably the graph on the bottom.

The one that has 220 people in the 18-24 age group.

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