Which pair of numbers have a greatest common factor of 5? Select each correct answer.

15 and 25
30 and 15
20 and 30
10 and 5

15 and 25

10 and 5

Step-by-step explanation:

15 and 25

30 and 15

10 and 5

Step-by-step explanation: Hope this helps :)

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