Answer:
The percent decrease is approximately 
(Don't know what you are expected to round to.)
Step-by-step explanation:
Percent change can be calculated by doing:

Then you multiply the result to covert it to a percentage.
Let's use this formula:




approximately
Now the answer as a percent is
approximately.
The percent decrease is approximately 
Answer:
y = -3x + 5
Step-by-step explanation:
I think its letter D because x + 2y fits with the equation and there for -3
The answer is C because 100 doesn’t change but 12 is dependent on the number of people.
Answer:
5 inches
Step-by-step explanation:
add all them and divide by 5.