To determine the number of video games (g) in Mark’s collection, we start by understanding the given information.
- Mark's collection has \(g\) games.
- Anson's collection has 5 times the number of games in Mark's collection, which means Anson has \(5g\) games.
- The total number of games combined is no more than 72. This can be expressed as:
\[ g + 5g \leq 72 \]
Combining the terms gives:
\[ 6g \leq 72 \]
So, the correct inequality that should be used to determine the number of video games in Mark's collection is:
6g ≤ 72
Now, for your second question, if Mark has 12 games in his collection, you can substitute \(g\) with 12 in the inequality:
\[ 6(12) \leq 72 \ 72 \leq 72 \]
This means that Mark's collection is valid under the inequality.