Which expression can go in the blank to make the equation true? -4.5 + 4.4 + ? = 0 a) -6.7 +6.8 b) -6.7 + (-6.6) c) 7.2 + (-7.2) or d) 7.2 + -7.2 + (-7.3)

A

Step-by-step explanation:all u have to do is try out every option and see if the answer equals to 0.

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