WhT is the largest interger less then or equal to 30?

30

Step-by-step explanation:

since it can be equal to 30 that means the answer is 30

you never say the total so we cant find the percentage used for petrol

step-by-step explanation:

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