What is the area of the polygon defined by the points 12,20 20,20 20,8 12,8

i dont know sorry

step-by-step explanation:

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

step-by-step explanation:

infinity is the answer

noncoplanar points are points that do not lie on the same line.