Answer:

Step-by-step explanation:
Since Z is a quadratic function of r, then it has the general equation of a quadratic equation :
Where a, b, and c are constants
Z represent the score and r represent the rounds played.
Hope this has helped?
Answer:
https://www.supermarketnews.com/consumer-trends/it-s-new-scene-grocery-shopping-pandemic-changes-behaviors
Step-by-step explanation:
its not a PDF its a website that i think might help you take a look if doesn't help i'll tell you