How to find the perimeter and area of a similar figure

To find the perimeter you just add up all the numbers on the sides

Area for a square is base times height

Area for a triangle is 1/2 base times height

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