Answer: 829 3/4 or 829 75/100
Step-by-step explanation:
2m: "two multiplied by m"
The formula for exponential decay is

where a is the initial value (28750)
r is the rate of decrease (0.12)
x is the time, in this case in years (6 . 2018-2012 = 6 years)

<span>y </span>≈ <span>13351.62</span>