The number of checks for credit union to have a better deal is an illustration of inequalities.
<em>The credit union is a better deal when writing 2 or more checks per month.</em>
Let the number of checks be x.
<u>For the local bank (L):</u>
The equation is: 
<u>For the credit union (C)</u>
The equation is: 
For credit union to have a better deal, then:

So, we have:

Collect like terms



Hence, the number of checks per month must be greater than 1 for the credit union to have a better deal.
Read more about inequalities at:
brainly.com/question/17675534