The equation is
y = 350 - 52(x) where x signifies the number of years and y signifies the value of the iPod.
Since the question asks for the value after 3 years, x becomes 3.
The equation is
y = 350 - 52(3)
y = 52(3) = 156
The equation is simplified to
y = 350 - 156
y = 194
Answer: $194