Kris has fifteen 1 1/2 inch blocks. if they were stacked one on top of another in a single stack. how tall would the stack be ?

22 1/2

Step-by-step explanation:

First multiply 1 1/2 x 15 then simplify

the first one, all those points on the line just make a strait line.

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