Answer:
C) 80
Step-by-step explanation:
x + 80 + 20 = 180
x + 100 = 180
x = 80
1/3 is the answer I believe
Take the current year and subtract is from the initial year, so
This year is 2016, your are trying to find age if born in 1983
2016
- 1983
-------------
33
You would be 33 years old if you were born in 1983 as of 2016.
the answer is a. increasing function
