Factor x-7x -5x + 35 by grouping. what is the resulting expression?
(x - 7)(x-5)
(x-7)(x+5)
(x - 5)(x-7)
(x + 5)(x-7)

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

a≈380.13mi² would be your answer if the radius was 11 miles