Acrew of highway workers paved 2/15 mile in 20 minutes. if they continued working at the same rate, what portion of a mile wil they pave in one hour

2/5 of a mile

Step-by-step explanation:

The easiest approach is to realise that one hour is 3 times longer than  

20 minutes. The longer the time, the more they will pave.

2/5  of a mile, in 20 minutes, how much in 60 minutes?(#)

They will pave 3 times more.

2/15 x 3/1 = 6/15 of a mile

6/15 = 2/5 of a mile

nothjing

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