Answer:
f(x)=2000-8x
Step-by-step explanation:
2000 is initial amount that gets subtracted
8x is the amount of gallons being siphoned out, where x is t, or minutes.
Answer:

Step-by-step explanation:

I think that You add all the ages and then divide by how many people you have so
100:10 = 10 is the mean age I guess?