Answer:
Option c.
Step-by-step explanation:
It is given that the piecewise function represents the Social Security taxes for 2009.

We need to find Rachel's security tax if she earned $102,000 in 2009.
Since 102,000 lies in
, therefore

Put x=102000.


So, the Social Security tax is $6324.
Therefore, the correct option is c.
If I'm understanding this correctly 20 rounded to the nearest ten would be 20
Answer:
Step-by-step explanation:
r = 
Using the geometric series formula for the <em>n</em>th term:

Time = distance / rate
time = 290 / rate