Explanation:
We have to find 20% of 86:
[tex]86\times\frac{20}{100}=80\times0.2=16[/tex]And add it to the average score for the 2017-2018 season, because it says the coach hopes a 20% increase:
[tex]86+16=102[/tex]Answer:
The teams must score an average of 102 points per game to meet the coach's goal.