So,
All you have to do to find the percent decrease is to subtract your score on Saturday from your score on Friday and divide the result by your score on Friday. If you let "f" represent your score on Friday and let "s" represent your score on Saturday, you can re-write this mathematically:

Substitute.


The percent decrease in shots you made was 20%. That would be option C.
Ms Francis would need to rent 6 tables in order to get everyone their own side.
She could have all the children, sitting at their tables, having their own side, but the 6th table just having the two other kids.
Ms Francis shouldn’t be having such a large party in the midst of a pandemic.
Answer:
E ( 1 , -1 ) is in quadrant IV