Calculate the monthly payment of the following mortgages:

mortgage amount: $146,800.00
apr: 5.25 %
term: 30 years

mortgage amount: $113,400.00
apr: 5 %
term: 15 years

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