You place a cup of 210f coffe on a table in a room that is 68f, and 10 minutes later, it is 200f. approximately how long will it be before the coffee is 180f? use newton's law of cooling:

i think the answer is seven, for if i'm being useless °ω°

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