When were these advertisements published? The initial move toward present-day promoting accompanied the improvement of imprinting in the fifteenth
and sixteenth hundreds of years.

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Explanation:

The evolution of advertising has experienced some major milestones over the years, as it’s had to adapt and change to suit new mediums and audiences constantly. Most significantly, it’s become much more personalized throughout history. The one medium that’s had the biggest impact on the history of advertising and advertising personalization is the internet, and its ability to collect billions of data points on users.

maybe by travelers or gossip

the perimeter of a triangle is 69 cm. side a is 5 cm shorter than side b. side c is twice as long as side a. find the length of each side. i need to know how to do it in 2 equations.  

equations:

a = b-5

c = 2a

a + b + c = 69