What is the key factor in the Courts decision to hear a case?

In order for the case to be heard, four justices must agree to hear the case. This is known as the Rule of Four. If four justices vote to hear the case, then it is placed onto the court's docket and the parties and their attorney's are notified that the Supreme Court agrees to hear the case.

Explanation:

1.) irish.

2.) settlers could obtain cheap land nearby

3.) steam engine

explanation:

fù o n*gga