Solve the Problem $y = 7900 ( 1.8 ) ^ { - 0.2 t }$

Multiple Choice

Solve the problem.
-The expected future population of a small town, which currently has 7900 residents, can be approximated by the formula $y = 7900 ( 1.8 ) ^ { - 0.2 t }$ where t is the number of years in the future. Find the expected population of the town 30 years in the future.

A) 2844
B) 7900
C) 232
D) 3