Which function represents the value after ‘x” years of a new delivery

truck that costs $35,000 and depreciates 10% each year?
a) 𝑦 = −10(35,000)
𝑥
b) 𝑦 = 35,000(0.10)
𝑥
c) 𝑦 = 35,000(0.90)
𝑥
d) 𝑦 = 35,000(1.10)
𝑥