Tickets for a texans game are on sale. children, adult, and a senior admission
tickets are available. for the first game of the season, 2 seniors, 2 adults, and 3
children cost $850. the second game of the season, 3 adults, 4 seniors, and 4
children cost $1400. it cost $1050 for the third game of the season for 3 children,
3 adults, and 2 seniors. write a system of equations for this scenario.

Step-by-step explanation:

EQUATION - a statement that the values of two mathematical expressions are equal (indicated by the sign =)

Just write down how you would figure out the cost per game.  

first game is 7 people times $8.50 =

and so on

This word problem is a great example of needing to pull out only information you need and ignoring the rest.

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