One of the stamps in evelyn's stamp collection is 19.51 mm wide and 24.4 mm long. how much longer is the length of the stamp than the width of the stamp? enter your answer in the box.

a² + b²= c²

24² + 7² = c²

c= 25

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