Alibrary changes a late return fee of $3.50 plus $0.15 per day that a book is returned late. write an equation to find the total late fee f for any number of days late d.

The equation would be $3.50+0.15d=f

3.50 is the cost of late return fee and

now we need to find how many days

the book was returned late (d).

So with that together we would be able

to find the total late fee (f).

answer: ur v dumb

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